Hi
here is cleaned/finished previous implementation of RAW_TEXT/RAW_BINARY
formats for COPY statements.
The RAW with text formats means unescaped data, but with correct encoding -
input/output is realised with input/output function. RAW binary means
content produced/received by sending/received functions.
Now both directions (input/output) working well
Some examples of expected usage:
copy (select xmlelement(name foo, 'hello')) to stdout (format raw_binary,
encoding 'latin2');
create table avatars(id serial, picture bytea);
\copy avatars(picture) from ~/images/foo.jpg (format raw_binary);
select lastval();
create table doc(id serial, txt text);
\copy doc(txt) from ~/files/aaa.txt (format raw_text, encoding 'latin2');
select lastval();
Regards
Pavel
diff --git a/doc/src/sgml/libpq.sgml b/doc/src/sgml/libpq.sgml
new file mode 100644
index 3829a14..7b9ed73
*** a/doc/src/sgml/libpq.sgml
--- b/doc/src/sgml/libpq.sgml
*************** int PQfformat(const PGresult *res,
*** 3226,3233 ****
<para>
Format code zero indicates textual data representation, while format
! code one indicates binary representation. (Other codes are reserved
! for future definition.)
</para>
</listitem>
</varlistentry>
--- 3226,3234 ----
<para>
Format code zero indicates textual data representation, while format
! code one indicates binary representation. Format code two indicates
! raw_text representation and format code three indicates raw_binary
! representation (Other codes are reserved for future definition.)
</para>
</listitem>
</varlistentry>
*************** typedef struct
*** 3557,3562 ****
--- 3558,3583 ----
</para>
<variablelist>
+ <varlistentry id="libpq-pqcopyformat">
+ <term>
+ <function>PQcopyFormat</function>
+ <indexterm>
+ <primary>PQcopyFormat</primary>
+ </indexterm>
+ </term>
+
+ <listitem>
+ <para>
+ Format code zero indicates textual data representation, format one
+ indicates binary representation, format two indicates raw
+ representation.
+ <synopsis>
+ int PQcopyFormat(PGresult *res);
+ </synopsis>
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry id="libpq-pqcmdstatus">
<term>
<function>PQcmdStatus</function>
diff --git a/doc/src/sgml/protocol.sgml b/doc/src/sgml/protocol.sgml
new file mode 100644
index 522128e..e783b30
*** a/doc/src/sgml/protocol.sgml
--- b/doc/src/sgml/protocol.sgml
*************** CopyInResponse (B)
*** 3239,3244 ****
--- 3239,3245 ----
characters, etc).
1 indicates the overall copy format is binary (similar
to DataRow format).
+ 2 indicates the overall copy format is raw.
See <xref linkend="sql-copy">
for more information.
</para>
*************** CopyInResponse (B)
*** 3262,3269 ****
<listitem>
<para>
The format codes to be used for each column.
! Each must presently be zero (text) or one (binary).
! All must be zero if the overall copy format is textual.
</para>
</listitem>
</varlistentry>
--- 3263,3271 ----
<listitem>
<para>
The format codes to be used for each column.
! Each must be zero (text), one (binary), two (raw_text)
! or three (raw_binary). All must be zero if the overall
! copy format is textual.
</para>
</listitem>
</varlistentry>
*************** CopyOutResponse (B)
*** 3313,3319 ****
is textual (rows separated by newlines, columns
separated by separator characters, etc). 1 indicates
the overall copy format is binary (similar to DataRow
! format). See <xref linkend="sql-copy"> for more information.
</para>
</listitem>
</varlistentry>
--- 3315,3322 ----
is textual (rows separated by newlines, columns
separated by separator characters, etc). 1 indicates
the overall copy format is binary (similar to DataRow
! format). 2 indicates raw_text or raw_binary format.
! See <xref linkend="sql-copy"> for more information.
</para>
</listitem>
</varlistentry>
*************** CopyOutResponse (B)
*** 3335,3342 ****
<listitem>
<para>
The format codes to be used for each column.
! Each must presently be zero (text) or one (binary).
! All must be zero if the overall copy format is textual.
</para>
</listitem>
</varlistentry>
--- 3338,3346 ----
<listitem>
<para>
The format codes to be used for each column.
! Each must be zero (text), one (binary), two (raw_text)
! or three (raw_binary). All must be zero if the overall
! copy format is textual.
</para>
</listitem>
</varlistentry>
diff --git a/doc/src/sgml/ref/copy.sgml b/doc/src/sgml/ref/copy.sgml
new file mode 100644
index 07e2f45..4e339e4
*** a/doc/src/sgml/ref/copy.sgml
--- b/doc/src/sgml/ref/copy.sgml
*************** COPY { <replaceable class="parameter">ta
*** 197,203 ****
Selects the data format to be read or written:
<literal>text</>,
<literal>csv</> (Comma Separated Values),
! or <literal>binary</>.
The default is <literal>text</>.
</para>
</listitem>
--- 197,205 ----
Selects the data format to be read or written:
<literal>text</>,
<literal>csv</> (Comma Separated Values),
! <literal>binary</>,
! <literal>raw_text</>
! or <literal>raw_binary</>.
The default is <literal>text</>.
</para>
</listitem>
*************** OIDs to be shown as null if that ever pr
*** 888,893 ****
--- 890,933 ----
</para>
</refsect3>
</refsect2>
+
+ <refsect2>
+ <title>Raw_text/raw_binary Format</title>
+
+ <para>
+ The <literal>raw_text</literal> format option causes all data to be
+ stored/read as one text value. This format doesn't use any metadata
+ - only raw data are exported or imported.
+ </para>
+
+ <para>
+ The <literal>raw_binary</literal> format option causes all data to be
+ stored/read as binary format rather than as text. It shares format
+ for data with <literal>binary</literal> format. This format doesn't
+ use any metadata - only row data in network byte order are exported
+ or imported.
+ </para>
+
+ <para>
+ Because this format doesn't support any delimiter, only one value
+ can be exported or imported. NULL values are not allowed.
+ </para>
+ <para>
+ The <literal>raw_binary</literal> format can be used for export or import
+ bytea values.
+ <programlisting>
+ COPY images(data) FROM '/usr1/proj/img/01.jpg' (FORMAT raw_binary);
+ </programlisting>
+ It can be used successfully for export XML in different encoding
+ or import valid XML document with any supported encoding:
+ <screen><![CDATA[
+ SET client_encoding TO latin2;
+
+ COPY (SELECT xmlelement(NAME data, 'Hello')) TO stdout (FORMAT raw_binary);
+ <?xml version="1.0" encoding="LATIN2"?><data>Hello</data>
+ ]]></screen>
+ </para>
+ </refsect2>
</refsect1>
<refsect1>
diff --git a/src/backend/commands/copy.c b/src/backend/commands/copy.c
new file mode 100644
index 3201476..7600829
*** a/src/backend/commands/copy.c
--- b/src/backend/commands/copy.c
*************** typedef struct CopyStateData
*** 110,115 ****
--- 110,116 ----
char *filename; /* filename, or NULL for STDIN/STDOUT */
bool is_program; /* is 'filename' a program to popen? */
bool binary; /* binary format? */
+ bool raw; /* raw mode? */
bool oids; /* include OIDs? */
bool freeze; /* freeze rows on loading? */
bool csv_mode; /* Comma Separated Value format? */
*************** SendCopyBegin(CopyState cstate)
*** 342,353 ****
/* new way */
StringInfoData buf;
int natts = list_length(cstate->attnumlist);
! int16 format = (cstate->binary ? 1 : 0);
int i;
pq_beginmessage(&buf, 'H');
! pq_sendbyte(&buf, format); /* overall format */
pq_sendint(&buf, natts, 2);
for (i = 0; i < natts; i++)
pq_sendint(&buf, format, 2); /* per-column formats */
pq_endmessage(&buf);
--- 343,369 ----
/* new way */
StringInfoData buf;
int natts = list_length(cstate->attnumlist);
! int16 format;
! int mode;
int i;
pq_beginmessage(&buf, 'H');
!
! if (cstate->raw)
! mode = 2;
! else if (cstate->binary)
! mode = 1;
! else
! mode = 0;
!
! pq_sendbyte(&buf, mode); /* overall mode */
pq_sendint(&buf, natts, 2);
+
+ if (!cstate->raw)
+ format = cstate->binary ? 1 : 0;
+ else
+ format = cstate->binary ? 3 : 2;
+
for (i = 0; i < natts; i++)
pq_sendint(&buf, format, 2); /* per-column formats */
pq_endmessage(&buf);
*************** SendCopyBegin(CopyState cstate)
*** 356,365 ****
else if (PG_PROTOCOL_MAJOR(FrontendProtocol) >= 2)
{
/* old way */
! if (cstate->binary)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('H');
/* grottiness needed for old COPY OUT protocol */
pq_startcopyout();
--- 372,381 ----
else if (PG_PROTOCOL_MAJOR(FrontendProtocol) >= 2)
{
/* old way */
! if (cstate->binary || cstate->raw)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY or COPY RAW_TEXT/RAW_BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('H');
/* grottiness needed for old COPY OUT protocol */
pq_startcopyout();
*************** SendCopyBegin(CopyState cstate)
*** 368,377 ****
else
{
/* very old way */
! if (cstate->binary)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('B');
/* grottiness needed for old COPY OUT protocol */
pq_startcopyout();
--- 384,393 ----
else
{
/* very old way */
! if (cstate->binary || cstate->raw)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY or COPY RAW_TEXT/RAW_BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('B');
/* grottiness needed for old COPY OUT protocol */
pq_startcopyout();
*************** ReceiveCopyBegin(CopyState cstate)
*** 387,398 ****
/* new way */
StringInfoData buf;
int natts = list_length(cstate->attnumlist);
! int16 format = (cstate->binary ? 1 : 0);
int i;
pq_beginmessage(&buf, 'G');
! pq_sendbyte(&buf, format); /* overall format */
pq_sendint(&buf, natts, 2);
for (i = 0; i < natts; i++)
pq_sendint(&buf, format, 2); /* per-column formats */
pq_endmessage(&buf);
--- 403,429 ----
/* new way */
StringInfoData buf;
int natts = list_length(cstate->attnumlist);
! int16 format;
! int mode;
int i;
pq_beginmessage(&buf, 'G');
!
! if (cstate->raw)
! mode = 2;
! else if (cstate->binary)
! mode = 1;
! else
! mode = 0;
!
! pq_sendbyte(&buf, mode); /* overall format */
pq_sendint(&buf, natts, 2);
+
+ if (!cstate->raw)
+ format = cstate->binary ? 1 : 0;
+ else
+ format = cstate->binary ? 3 : 2;
+
for (i = 0; i < natts; i++)
pq_sendint(&buf, format, 2); /* per-column formats */
pq_endmessage(&buf);
*************** ReceiveCopyBegin(CopyState cstate)
*** 402,411 ****
else if (PG_PROTOCOL_MAJOR(FrontendProtocol) >= 2)
{
/* old way */
! if (cstate->binary)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('G');
/* any error in old protocol will make us lose sync */
pq_startmsgread();
--- 433,442 ----
else if (PG_PROTOCOL_MAJOR(FrontendProtocol) >= 2)
{
/* old way */
! if (cstate->binary || cstate->raw)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY or COPY RAW_TEXT/RAW_BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('G');
/* any error in old protocol will make us lose sync */
pq_startmsgread();
*************** ReceiveCopyBegin(CopyState cstate)
*** 414,423 ****
else
{
/* very old way */
! if (cstate->binary)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('D');
/* any error in old protocol will make us lose sync */
pq_startmsgread();
--- 445,454 ----
else
{
/* very old way */
! if (cstate->binary || cstate->raw)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
! errmsg("COPY BINARY or COPY RAW_TEXT/RAW_BINARY is not supported to stdout or from stdin")));
pq_putemptymessage('D');
/* any error in old protocol will make us lose sync */
pq_startmsgread();
*************** CopySendEndOfRow(CopyState cstate)
*** 482,488 ****
switch (cstate->copy_dest)
{
case COPY_FILE:
! if (!cstate->binary)
{
/* Default line termination depends on platform */
#ifndef WIN32
--- 513,519 ----
switch (cstate->copy_dest)
{
case COPY_FILE:
! if (!cstate->binary && !cstate->raw)
{
/* Default line termination depends on platform */
#ifndef WIN32
*************** CopySendEndOfRow(CopyState cstate)
*** 526,531 ****
--- 557,565 ----
}
break;
case COPY_OLD_FE:
+ /* This old protocol doesn't allow RAW_TEXT/RAW_BINARY */
+ Assert(!cstate->raw);
+
/* The FE/BE protocol uses \n as newline for all platforms */
if (!cstate->binary)
CopySendChar(cstate, '\n');
*************** CopySendEndOfRow(CopyState cstate)
*** 540,546 ****
break;
case COPY_NEW_FE:
/* The FE/BE protocol uses \n as newline for all platforms */
! if (!cstate->binary)
CopySendChar(cstate, '\n');
/* Dump the accumulated row as one CopyData message */
--- 574,580 ----
break;
case COPY_NEW_FE:
/* The FE/BE protocol uses \n as newline for all platforms */
! if (!cstate->binary && !cstate->raw)
CopySendChar(cstate, '\n');
/* Dump the accumulated row as one CopyData message */
*************** CopyLoadRawBuf(CopyState cstate)
*** 766,771 ****
--- 800,837 ----
return (inbytes > 0);
}
+ /*
+ * CopyLoadallRawBuf loads all content into raw_buf.
+ *
+ * This routine is used in raw_text/raw_binary mode. If original RAW_BUF_SIZE is not
+ * enough, then the buffer is enlarged.
+ */
+ static void
+ CopyLoadallRawBuf(CopyState cstate)
+ {
+ int nbytes = 0;
+ int inbytes;
+ Size raw_buf_size = RAW_BUF_SIZE;
+
+ do
+ {
+ /* hold enough space for one data packet */
+ if ((raw_buf_size - nbytes - 1) < 8 * 1024)
+ {
+ raw_buf_size += RAW_BUF_SIZE;
+ cstate->raw_buf = repalloc(cstate->raw_buf, raw_buf_size);
+ }
+
+ inbytes = CopyGetData(cstate, cstate->raw_buf + nbytes, 1, raw_buf_size - nbytes - 1);
+ nbytes += inbytes;
+ }
+ while (inbytes > 0);
+
+ cstate->raw_buf[nbytes] = '\0';
+ cstate->raw_buf_index = 0;
+ cstate->raw_buf_len = nbytes;
+ }
+
/*
* DoCopy executes the SQL COPY statement
*************** ProcessCopyOptions(CopyState cstate,
*** 1013,1018 ****
--- 1079,1091 ----
cstate->csv_mode = true;
else if (strcmp(fmt, "binary") == 0)
cstate->binary = true;
+ else if (strcmp(fmt, "raw_text") == 0)
+ cstate->raw = true;
+ else if (strcmp(fmt, "raw_binary") == 0)
+ {
+ cstate->binary = true;
+ cstate->raw = true;
+ }
else
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
*************** ProcessCopyOptions(CopyState cstate,
*** 1162,1177 ****
* Check for incompatible options (must do these two before inserting
* defaults)
*/
! if (cstate->binary && cstate->delim)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("cannot specify DELIMITER in BINARY mode")));
! if (cstate->binary && cstate->null_print)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("cannot specify NULL in BINARY mode")));
/* Set defaults for omitted options */
if (!cstate->delim)
cstate->delim = cstate->csv_mode ? "," : "\t";
--- 1235,1255 ----
* Check for incompatible options (must do these two before inserting
* defaults)
*/
! if ((cstate->binary || cstate->raw) && cstate->delim)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("cannot specify DELIMITER in BINARY mode")));
! if ((cstate->binary || cstate->raw) && cstate->null_print)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("cannot specify NULL in BINARY mode")));
+ if (cstate->raw && cstate->oids)
+ ereport(ERROR,
+ (errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("cannot specify OIDS in RAW_TEXT/RAW_BINARY mode")));
+
/* Set defaults for omitted options */
if (!cstate->delim)
cstate->delim = cstate->csv_mode ? "," : "\t";
*************** BeginCopy(bool is_from,
*** 1608,1613 ****
--- 1686,1697 ----
}
}
+ /* No more columns are allowed in RAW mode */
+ if (cstate->raw && list_length(cstate->attnumlist) > 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("Single column result/target is required in RAW_TEXT/RAW_BINARY mode")));
+
/* Use client encoding when ENCODING option is not specified. */
if (cstate->file_encoding < 0)
cstate->file_encoding = pg_get_client_encoding();
*************** CopyTo(CopyState cstate)
*** 1899,1905 ****
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
! if (cstate->binary)
{
/* Generate header for a binary copy */
int32 tmp;
--- 1983,1989 ----
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
! if (cstate->binary && !cstate->raw)
{
/* Generate header for a binary copy */
int32 tmp;
*************** CopyTo(CopyState cstate)
*** 1931,1936 ****
--- 2015,2023 ----
{
bool hdr_delim = false;
+ /* raw_text/raw_binary mode is not allowed here */
+ Assert(!cstate->raw);
+
foreach(cur, cstate->attnumlist)
{
int attnum = lfirst_int(cur);
*************** CopyTo(CopyState cstate)
*** 1967,1972 ****
--- 2054,2063 ----
{
CHECK_FOR_INTERRUPTS();
+ /* stop quickly in raw_text/raw_binary when more rows is detected */
+ if (cstate->raw && processed > 0)
+ break;
+
/* Deconstruct the tuple ... faster than repeated heap_getattr */
heap_deform_tuple(tuple, tupDesc, values, nulls);
*************** CopyTo(CopyState cstate)
*** 1983,1993 ****
else
{
/* run the plan --- the dest receiver will send tuples */
! ExecutorRun(cstate->queryDesc, ForwardScanDirection, 0L);
processed = ((DR_copy *) cstate->queryDesc->dest)->processed;
}
! if (cstate->binary)
{
/* Generate trailer for a binary copy */
CopySendInt16(cstate, -1);
--- 2074,2098 ----
else
{
/* run the plan --- the dest receiver will send tuples */
! ExecutorRun(cstate->queryDesc, ForwardScanDirection, cstate->raw ? 2L : 0L);
processed = ((DR_copy *) cstate->queryDesc->dest)->processed;
}
! /* raw_text/raw_binary requires exactly one row */
! if (cstate->raw)
! {
! if (processed > 1)
! ereport(ERROR,
! (errcode(ERRCODE_TOO_MANY_ROWS),
! errmsg("single row result is required by RAW_TEXT/RAW_BINARY mode")));
!
! if (processed == 0)
! ereport(ERROR,
! (errcode(ERRCODE_NO_DATA_FOUND),
! errmsg("single row result is required by RAW_TEXT/RAW_BINARY mode")));
! }
!
! if (cstate->binary && !cstate->raw)
{
/* Generate trailer for a binary copy */
CopySendInt16(cstate, -1);
*************** CopyOneRowTo(CopyState cstate, Oid tuple
*** 2015,2042 ****
MemoryContextReset(cstate->rowcontext);
oldcontext = MemoryContextSwitchTo(cstate->rowcontext);
! if (cstate->binary)
{
! /* Binary per-tuple header */
! CopySendInt16(cstate, list_length(cstate->attnumlist));
! /* Send OID if wanted --- note attnumlist doesn't include it */
! if (cstate->oids)
{
! /* Hack --- assume Oid is same size as int32 */
! CopySendInt32(cstate, sizeof(int32));
! CopySendInt32(cstate, tupleOid);
}
! }
! else
! {
! /* Text format has no per-tuple header, but send OID if wanted */
! /* Assume digits don't need any quoting or encoding conversion */
! if (cstate->oids)
{
! string = DatumGetCString(DirectFunctionCall1(oidout,
! ObjectIdGetDatum(tupleOid)));
! CopySendString(cstate, string);
! need_delim = true;
}
}
--- 2120,2150 ----
MemoryContextReset(cstate->rowcontext);
oldcontext = MemoryContextSwitchTo(cstate->rowcontext);
! if (!cstate->raw)
{
! if (cstate->binary)
{
! /* Binary per-tuple header */
! CopySendInt16(cstate, list_length(cstate->attnumlist));
! /* Send OID if wanted --- note attnumlist doesn't include it */
! if (cstate->oids)
! {
! /* Hack --- assume Oid is same size as int32 */
! CopySendInt32(cstate, sizeof(int32));
! CopySendInt32(cstate, tupleOid);
! }
}
! else
{
! /* Text format has no per-tuple header, but send OID if wanted */
! /* Assume digits don't need any quoting or encoding conversion */
! if (cstate->oids)
! {
! string = DatumGetCString(DirectFunctionCall1(oidout,
! ObjectIdGetDatum(tupleOid)));
! CopySendString(cstate, string);
! need_delim = true;
! }
}
}
*************** CopyOneRowTo(CopyState cstate, Oid tuple
*** 2055,2060 ****
--- 2163,2173 ----
if (isnull)
{
+ if (cstate->raw)
+ ereport(ERROR,
+ (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
+ errmsg("NULL value is not allowed in RAW_TEXT/RAW_BINARY mode")));
+
if (!cstate->binary)
CopySendString(cstate, cstate->null_print_client);
else
*************** CopyOneRowTo(CopyState cstate, Oid tuple
*** 2062,2068 ****
}
else
{
! if (!cstate->binary)
{
string = OutputFunctionCall(&out_functions[attnum - 1],
value);
--- 2175,2246 ----
}
else
{
! if (cstate->raw)
! {
! const void *content;
! int size;
!
! if (!cstate->binary)
! {
! string = OutputFunctionCall(&out_functions[attnum - 1],
! value);
!
! /* We would to transcode, but without escaping */
! if (cstate->need_transcoding)
! content = pg_server_to_any(string, strlen(string), cstate->file_encoding);
! else
! content = string;
!
! size = strlen((const char *) content);
! }
! else
! {
! bytea *outputbytes;
!
! /*
! * Some binary output functions depends can depends on client encoding.
! * The binary output of xml is good example. Set client_encoding
! * temporaly before out function execution.
! */
! if (cstate->need_transcoding)
! {
! int old_server_encoding = pg_get_client_encoding();
! volatile bool reset_encoding = false;
!
! PG_TRY();
! {
! /* We don't expect an error, because encoding was checked before */
! if (PrepareClientEncoding(cstate->file_encoding) < 0)
! elog(ERROR, "PrepareClientEncoding(%d) failed", cstate->file_encoding);
!
! SetClientEncoding(cstate->file_encoding);
! reset_encoding = true;
!
! outputbytes = SendFunctionCall(&out_functions[attnum - 1],
! value);
! SetClientEncoding(old_server_encoding);
! }
! PG_CATCH();
! {
! if (reset_encoding)
! SetClientEncoding(old_server_encoding);
! PG_RE_THROW();
! }
! PG_END_TRY();
! }
! else
! {
! outputbytes = SendFunctionCall(&out_functions[attnum - 1],
! value);
! }
! content = VARDATA(outputbytes);
! size = VARSIZE(outputbytes) - VARHDRSZ;
! }
!
! /* Send only content in RAW_TEXT/RAW_BINARY mode */
! CopySendData(cstate, content, size);
! }
! else if (!cstate->binary)
{
string = OutputFunctionCall(&out_functions[attnum - 1],
value);
*************** BeginCopyFrom(Relation rel,
*** 2811,2875 ****
}
}
! if (!cstate->binary)
! {
! /* must rely on user to tell us... */
! cstate->file_has_oids = cstate->oids;
! }
! else
{
! /* Read and verify binary header */
! char readSig[11];
! int32 tmp;
!
! /* Signature */
! if (CopyGetData(cstate, readSig, 11, 11) != 11 ||
! memcmp(readSig, BinarySignature, 11) != 0)
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("COPY file signature not recognized")));
! /* Flags field */
! if (!CopyGetInt32(cstate, &tmp))
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("invalid COPY file header (missing flags)")));
! cstate->file_has_oids = (tmp & (1 << 16)) != 0;
! tmp &= ~(1 << 16);
! if ((tmp >> 16) != 0)
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("unrecognized critical flags in COPY file header")));
! /* Header extension length */
! if (!CopyGetInt32(cstate, &tmp) ||
! tmp < 0)
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("invalid COPY file header (missing length)")));
! /* Skip extension header, if present */
! while (tmp-- > 0)
{
! if (CopyGetData(cstate, readSig, 1, 1) != 1)
ereport(ERROR,
(errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("invalid COPY file header (wrong length)")));
}
- }
! if (cstate->file_has_oids && cstate->binary)
! {
! getTypeBinaryInputInfo(OIDOID,
! &in_func_oid, &cstate->oid_typioparam);
! fmgr_info(in_func_oid, &cstate->oid_in_function);
! }
! /* create workspace for CopyReadAttributes results */
! if (!cstate->binary)
! {
! AttrNumber attr_count = list_length(cstate->attnumlist);
! int nfields = cstate->file_has_oids ? (attr_count + 1) : attr_count;
! cstate->max_fields = nfields;
! cstate->raw_fields = (char **) palloc(nfields * sizeof(char *));
}
MemoryContextSwitchTo(oldcontext);
--- 2989,3057 ----
}
}
! /* The raw mode hasn't any header information */
! if (!cstate->raw)
{
! if (!cstate->binary)
{
! /* must rely on user to tell us... */
! cstate->file_has_oids = cstate->oids;
! }
! else
! {
! /* Read and verify binary header */
! char readSig[11];
! int32 tmp;
!
! /* Signature */
! if (CopyGetData(cstate, readSig, 11, 11) != 11 ||
! memcmp(readSig, BinarySignature, 11) != 0)
ereport(ERROR,
(errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("COPY file signature not recognized")));
! /* Flags field */
! if (!CopyGetInt32(cstate, &tmp))
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("invalid COPY file header (missing flags)")));
! cstate->file_has_oids = (tmp & (1 << 16)) != 0;
! tmp &= ~(1 << 16);
! if ((tmp >> 16) != 0)
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("unrecognized critical flags in COPY file header")));
! /* Header extension length */
! if (!CopyGetInt32(cstate, &tmp) ||
! tmp < 0)
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("invalid COPY file header (missing length)")));
! /* Skip extension header, if present */
! while (tmp-- > 0)
! {
! if (CopyGetData(cstate, readSig, 1, 1) != 1)
! ereport(ERROR,
! (errcode(ERRCODE_BAD_COPY_FILE_FORMAT),
! errmsg("invalid COPY file header (wrong length)")));
! }
}
! if (cstate->file_has_oids && cstate->binary)
! {
! getTypeBinaryInputInfo(OIDOID,
! &in_func_oid, &cstate->oid_typioparam);
! fmgr_info(in_func_oid, &cstate->oid_in_function);
! }
! /* create workspace for CopyReadAttributes results */
! if (!cstate->binary)
! {
! AttrNumber attr_count = list_length(cstate->attnumlist);
! int nfields = cstate->file_has_oids ? (attr_count + 1) : attr_count;
! cstate->max_fields = nfields;
! cstate->raw_fields = (char **) palloc(nfields * sizeof(char *));
! }
}
MemoryContextSwitchTo(oldcontext);
*************** NextCopyFrom(CopyState cstate, ExprConte
*** 2968,2974 ****
MemSet(values, 0, num_phys_attrs * sizeof(Datum));
MemSet(nulls, true, num_phys_attrs * sizeof(bool));
! if (!cstate->binary)
{
char **field_strings;
ListCell *cur;
--- 3150,3203 ----
MemSet(values, 0, num_phys_attrs * sizeof(Datum));
MemSet(nulls, true, num_phys_attrs * sizeof(bool));
! if (cstate->raw)
! {
! int m = linitial_int(cstate->attnumlist) - 1;
!
! /* All content was read in first cycle */
! if (++cstate->cur_lineno > 1)
! return false;
!
! CopyLoadallRawBuf(cstate);
!
! cstate->cur_attname = NameStr(attr[m]->attname);
!
! if (!cstate->binary)
! {
! char *cvt;
!
! cvt = pg_any_to_server(cstate->raw_buf,
! cstate->raw_buf_len,
! cstate->file_encoding);
!
! values[m] = InputFunctionCall(&in_functions[m],
! cvt,
! typioparams[m],
! attr[m]->atttypmod);
! }
! else
! {
! cstate->attribute_buf.data = cstate->raw_buf;
! cstate->attribute_buf.len = cstate->raw_buf_len;
! cstate->attribute_buf.cursor = 0;
! cstate->raw_buf = NULL;
!
! /* Call the column type's binary input converter */
! values[m] = ReceiveFunctionCall(&in_functions[m], &cstate->attribute_buf,
! typioparams[m], attr[m]->atttypmod);
!
! /* Trouble if it didn't eat the whole buffer */
! if (cstate->attribute_buf.cursor != cstate->attribute_buf.len)
! ereport(ERROR,
! (errcode(ERRCODE_INVALID_BINARY_REPRESENTATION),
! errmsg("incorrect binary data format")));
! }
!
! nulls[m] = false;
!
! cstate->cur_attname = NULL;
! }
! else if (!cstate->binary)
{
char **field_strings;
ListCell *cur;
diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
new file mode 100644
index cb8a06d..4dab119
*** a/src/bin/psql/tab-complete.c
--- b/src/bin/psql/tab-complete.c
*************** psql_completion(const char *text, int st
*** 1969,1976 ****
/* Handle COPY [BINARY] <sth> FROM|TO filename */
else if (Matches4("COPY|\\copy", MatchAny, "FROM|TO", MatchAny) ||
Matches5("COPY", "BINARY", MatchAny, "FROM|TO", MatchAny))
! COMPLETE_WITH_LIST6("BINARY", "OIDS", "DELIMITER", "NULL", "CSV",
! "ENCODING");
/* Handle COPY [BINARY] <sth> FROM|TO filename CSV */
else if (Matches5("COPY|\\copy", MatchAny, "FROM|TO", MatchAny, "CSV") ||
--- 1969,1976 ----
/* Handle COPY [BINARY] <sth> FROM|TO filename */
else if (Matches4("COPY|\\copy", MatchAny, "FROM|TO", MatchAny) ||
Matches5("COPY", "BINARY", MatchAny, "FROM|TO", MatchAny))
! COMPLETE_WITH_LIST8("BINARY", "RAW_TEXT", "RAW_BINARY", "OIDS",
! "DELIMITER", "NULL", "CSV", "ENCODING");
/* Handle COPY [BINARY] <sth> FROM|TO filename CSV */
else if (Matches5("COPY|\\copy", MatchAny, "FROM|TO", MatchAny, "CSV") ||
diff --git a/src/interfaces/libpq/exports.txt b/src/interfaces/libpq/exports.txt
new file mode 100644
index 21dd772..a2754f1
*** a/src/interfaces/libpq/exports.txt
--- b/src/interfaces/libpq/exports.txt
*************** PQsslAttributeNames 168
*** 171,173 ****
--- 171,174 ----
PQsslAttribute 169
PQsetErrorContextVisibility 170
PQresultVerboseErrorMessage 171
+ PQcopyFormat 172
diff --git a/src/interfaces/libpq/fe-exec.c b/src/interfaces/libpq/fe-exec.c
new file mode 100644
index 2621767..09967e9
*** a/src/interfaces/libpq/fe-exec.c
--- b/src/interfaces/libpq/fe-exec.c
*************** PQmakeEmptyPGresult(PGconn *conn, ExecSt
*** 155,160 ****
--- 155,161 ----
result->resultStatus = status;
result->cmdStatus[0] = '\0';
result->binary = 0;
+ result->raw = 0;
result->events = NULL;
result->nEvents = 0;
result->errMsg = NULL;
*************** PQsetResultAttrs(PGresult *res, int numA
*** 256,263 ****
if (!res->attDescs[i].name)
return FALSE;
! if (res->attDescs[i].format == 0)
res->binary = 0;
}
return TRUE;
--- 257,266 ----
if (!res->attDescs[i].name)
return FALSE;
! if (res->attDescs[i].format == 0 || res->attDescs[i].format == 2)
res->binary = 0;
+ if (res->attDescs[i].format == 2 || res->attDescs[i].format == 3)
+ res->raw = 1;
}
return TRUE;
*************** PQcmdStatus(PGresult *res)
*** 2932,2937 ****
--- 2935,2955 ----
}
/*
+ * PQcopyFormat
+ *
+ * Returns a info about copy mode:
+ * -1 signalize a error, 0 = text mode, 1 = binary mode, 2 = raw mode
+ */
+ int
+ PQcopyFormat(const PGresult *res)
+ {
+ if (res->raw)
+ return 2;
+ else
+ return res->binary;
+ }
+
+ /*
* PQoidStatus -
* if the last command was an INSERT, return the oid string
* if not, return ""
diff --git a/src/interfaces/libpq/fe-protocol3.c b/src/interfaces/libpq/fe-protocol3.c
new file mode 100644
index 0b8c62f..1783844
*** a/src/interfaces/libpq/fe-protocol3.c
--- b/src/interfaces/libpq/fe-protocol3.c
*************** getCopyStart(PGconn *conn, ExecStatusTyp
*** 1486,1491 ****
--- 1486,1495 ----
*/
format = (int) ((int16) format);
result->attDescs[i].format = format;
+
+ /* when any field uses raw format, then COPY RAW_* was used */
+ if (format == 2 || format == 3)
+ result->raw = true;
}
/* Success! */
diff --git a/src/interfaces/libpq/libpq-fe.h b/src/interfaces/libpq/libpq-fe.h
new file mode 100644
index 9ca0756..7984666
*** a/src/interfaces/libpq/libpq-fe.h
--- b/src/interfaces/libpq/libpq-fe.h
*************** extern Oid PQftype(const PGresult *res,
*** 479,484 ****
--- 479,485 ----
extern int PQfsize(const PGresult *res, int field_num);
extern int PQfmod(const PGresult *res, int field_num);
extern char *PQcmdStatus(PGresult *res);
+ extern int PQcopyFormat(const PGresult *res);
extern char *PQoidStatus(const PGresult *res); /* old and ugly */
extern Oid PQoidValue(const PGresult *res); /* new and improved */
extern char *PQcmdTuples(PGresult *res);
diff --git a/src/interfaces/libpq/libpq-int.h b/src/interfaces/libpq/libpq-int.h
new file mode 100644
index 1183323..8fc4b04
*** a/src/interfaces/libpq/libpq-int.h
--- b/src/interfaces/libpq/libpq-int.h
*************** struct pg_result
*** 180,185 ****
--- 180,186 ----
char cmdStatus[CMDSTATUS_LEN]; /* cmd status from the query */
int binary; /* binary tuple values if binary == 1,
* otherwise text */
+ int raw; /* raw mode for COPY */
/*
* These fields are copied from the originating PGconn, so that operations
diff --git a/src/test/regress/expected/copy2.out b/src/test/regress/expected/copy2.out
new file mode 100644
index 5f6260a..3d36dd3
*** a/src/test/regress/expected/copy2.out
--- b/src/test/regress/expected/copy2.out
*************** DROP FUNCTION truncate_in_subxact();
*** 466,468 ****
--- 466,482 ----
DROP TABLE x, y;
DROP FUNCTION fn_x_before();
DROP FUNCTION fn_x_after();
+ CREATE TABLE x(a bytea);
+ INSERT INTO x VALUES('\x41484f4a0a');
+ INSERT INTO x VALUES('\x41484f4a0a');
+ -- should to fail
+ COPY (SELECT a,a FROM x LIMIT 1) TO STDOUT (FORMAT raw_binary);
+ ERROR: Single column result/target is required in RAW_TEXT/RAW_BINARY mode
+ COPY (SELECT a FROM x) TO STDOUT (FORMAT raw_binary);
+ AHOJ
+ AHOJ
+ ERROR: single row result is required by RAW_TEXT/RAW_BINARY mode
+ -- should be ok
+ COPY (SELECT a FROM x LIMIT 1) TO STDOUT (FORMAT raw_binary);
+ AHOJ
+ DROP TABLE x;
diff --git a/src/test/regress/input/copy.source b/src/test/regress/input/copy.source
new file mode 100644
index cb13606..085ae36
*** a/src/test/regress/input/copy.source
--- b/src/test/regress/input/copy.source
*************** this is just a line full of junk that wo
*** 133,135 ****
--- 133,214 ----
\.
copy copytest3 to stdout csv header;
+
+ -- copy raw
+ CREATE TABLE x(a bytea);
+ INSERT INTO x VALUES('\x41484f4a0a');
+ SELECT length(a) FROM x;
+
+ INSERT INTO x VALUES('\x41484f4a0a');
+
+ -- should to fail
+ COPY (SELECT a,a FROM x LIMIT 1) TO '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+ COPY (SELECT a FROM x) TO '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+
+ -- should be ok
+ COPY (SELECT a FROM x LIMIT 1) TO '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+ TRUNCATE x;
+ COPY x FROM '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+ SELECT length(a) FROM x;
+ COPY x TO stdout (FORMAT raw_binary);
+
+ TRUNCATE x;
+
+ \COPY x FROM '@abs_builddir@/results/raw.data' (FORMAT raw_binary)
+ SELECT length(a) FROM x;
+ COPY x TO stdout (FORMAT raw_binary);
+
+ \COPY x TO '@abs_builddir@/results/raw2.data' (FORMAT raw_binary)
+ TRUNCATE x;
+
+ \COPY x FROM '@abs_builddir@/results/raw2.data' (FORMAT raw_binary)
+ SELECT length(a) FROM x;
+ COPY x TO stdout (FORMAT raw_binary);
+
+ -- test big file
+ TRUNCATE x;
+ -- use different mechanism for load to bytea
+ \lo_import @abs_builddir@/data/hash.data
+ \set lo_oid :LASTOID
+ INSERT INTO x VALUES(lo_get(:lo_oid));
+ \lo_unlink :lo_oid
+
+ COPY x FROM '@abs_builddir@/data/hash.data' (FORMAT raw_binary);
+ \COPY x FROM '@abs_builddir@/data/hash.data' (FORMAT raw_binary)
+
+ SELECT md5(a), length(a) FROM x;
+
+ TRUNCATE x;
+ COPY x FROM '@abs_builddir@/data/hash.data' (FORMAT raw_binary);
+ COPY x TO '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ \COPY x TO '@abs_builddir@/results/hash3.data' (FORMAT raw_binary)
+
+ -- read again
+ COPY x FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ \COPY x FROM '@abs_builddir@/results/hash3.data' (FORMAT raw_binary)
+ -- cross
+ COPY x FROM '@abs_builddir@/results/hash3.data' (FORMAT raw_binary);
+ \COPY x FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary)
+
+ SELECT md5(a), length(a) FROM x;
+
+ DROP TABLE x;
+
+ -- insert into multicolumn table
+ CREATE TABLE x(id serial, a bytea, b bytea);
+
+ -- should fail, too much columns
+ COPY x FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+
+ -- should work
+ COPY x(a) FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ COPY x(b) FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ SELECT id, md5(a), md5(b) FROM x;
+
+ -- test raw_text
+ COPY (SELECT a FROM x WHERE id = 1) TO '@abs_builddir@/results/hash4.data' (FORMAT raw_text);
+ COPY x(a) FROM '@abs_builddir@/results/hash4.data' (FORMAT raw_text);
+ SELECT id, md5(a) FROM x WHERE id = lastval();
+
+ DROP TABLE x;
+
diff --git a/src/test/regress/output/copy.source b/src/test/regress/output/copy.source
new file mode 100644
index b7e372d..e34bbab
*** a/src/test/regress/output/copy.source
--- b/src/test/regress/output/copy.source
*************** copy copytest3 to stdout csv header;
*** 95,97 ****
--- 95,208 ----
c1,"col with , comma","col with "" quote"
1,a,1
2,b,2
+ -- copy raw
+ CREATE TABLE x(a bytea);
+ INSERT INTO x VALUES('\x41484f4a0a');
+ SELECT length(a) FROM x;
+ length
+ --------
+ 5
+ (1 row)
+
+ INSERT INTO x VALUES('\x41484f4a0a');
+ -- should to fail
+ COPY (SELECT a,a FROM x LIMIT 1) TO '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+ ERROR: Single column result/target is required in RAW_TEXT/RAW_BINARY mode
+ COPY (SELECT a FROM x) TO '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+ ERROR: single row result is required by RAW_TEXT/RAW_BINARY mode
+ -- should be ok
+ COPY (SELECT a FROM x LIMIT 1) TO '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+ TRUNCATE x;
+ COPY x FROM '@abs_builddir@/results/raw.data' (FORMAT raw_binary);
+ SELECT length(a) FROM x;
+ length
+ --------
+ 5
+ (1 row)
+
+ COPY x TO stdout (FORMAT raw_binary);
+ AHOJ
+ TRUNCATE x;
+ \COPY x FROM '@abs_builddir@/results/raw.data' (FORMAT raw_binary)
+ SELECT length(a) FROM x;
+ length
+ --------
+ 5
+ (1 row)
+
+ COPY x TO stdout (FORMAT raw_binary);
+ AHOJ
+ \COPY x TO '@abs_builddir@/results/raw2.data' (FORMAT raw_binary)
+ TRUNCATE x;
+ \COPY x FROM '@abs_builddir@/results/raw2.data' (FORMAT raw_binary)
+ SELECT length(a) FROM x;
+ length
+ --------
+ 5
+ (1 row)
+
+ COPY x TO stdout (FORMAT raw_binary);
+ AHOJ
+ -- test big file
+ TRUNCATE x;
+ -- use different mechanism for load to bytea
+ \lo_import @abs_builddir@/data/hash.data
+ \set lo_oid :LASTOID
+ INSERT INTO x VALUES(lo_get(:lo_oid));
+ \lo_unlink :lo_oid
+ COPY x FROM '@abs_builddir@/data/hash.data' (FORMAT raw_binary);
+ \COPY x FROM '@abs_builddir@/data/hash.data' (FORMAT raw_binary)
+ SELECT md5(a), length(a) FROM x;
+ md5 | length
+ ----------------------------------+--------
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ (3 rows)
+
+ TRUNCATE x;
+ COPY x FROM '@abs_builddir@/data/hash.data' (FORMAT raw_binary);
+ COPY x TO '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ \COPY x TO '@abs_builddir@/results/hash3.data' (FORMAT raw_binary)
+ -- read again
+ COPY x FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ \COPY x FROM '@abs_builddir@/results/hash3.data' (FORMAT raw_binary)
+ -- cross
+ COPY x FROM '@abs_builddir@/results/hash3.data' (FORMAT raw_binary);
+ \COPY x FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary)
+ SELECT md5(a), length(a) FROM x;
+ md5 | length
+ ----------------------------------+--------
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ e446fe6ea5a347e69670633412c7f8cb | 153749
+ (5 rows)
+
+ DROP TABLE x;
+ -- insert into multicolumn table
+ CREATE TABLE x(id serial, a bytea, b bytea);
+ -- should fail, too much columns
+ COPY x FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ ERROR: Single column result/target is required in RAW_TEXT/RAW_BINARY mode
+ -- should work
+ COPY x(a) FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ COPY x(b) FROM '@abs_builddir@/results/hash2.data' (FORMAT raw_binary);
+ SELECT id, md5(a), md5(b) FROM x;
+ id | md5 | md5
+ ----+----------------------------------+----------------------------------
+ 1 | e446fe6ea5a347e69670633412c7f8cb |
+ 2 | | e446fe6ea5a347e69670633412c7f8cb
+ (2 rows)
+
+ -- test raw_text
+ COPY (SELECT a FROM x WHERE id = 1) TO '@abs_builddir@/results/hash4.data' (FORMAT raw_text);
+ COPY x(a) FROM '@abs_builddir@/results/hash4.data' (FORMAT raw_text);
+ SELECT id, md5(a) FROM x WHERE id = lastval();
+ id | md5
+ ----+----------------------------------
+ 3 | e446fe6ea5a347e69670633412c7f8cb
+ (1 row)
+
+ DROP TABLE x;
diff --git a/src/test/regress/sql/copy2.sql b/src/test/regress/sql/copy2.sql
new file mode 100644
index 39a9deb..7e22ee4
*** a/src/test/regress/sql/copy2.sql
--- b/src/test/regress/sql/copy2.sql
*************** DROP FUNCTION truncate_in_subxact();
*** 333,335 ****
--- 333,348 ----
DROP TABLE x, y;
DROP FUNCTION fn_x_before();
DROP FUNCTION fn_x_after();
+
+ CREATE TABLE x(a bytea);
+ INSERT INTO x VALUES('\x41484f4a0a');
+ INSERT INTO x VALUES('\x41484f4a0a');
+
+ -- should to fail
+ COPY (SELECT a,a FROM x LIMIT 1) TO STDOUT (FORMAT raw_binary);
+ COPY (SELECT a FROM x) TO STDOUT (FORMAT raw_binary);
+
+ -- should be ok
+ COPY (SELECT a FROM x LIMIT 1) TO STDOUT (FORMAT raw_binary);
+
+ DROP TABLE x;
--
Sent via pgsql-hackers mailing list ([email protected])
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers
