--- Aladdin Lampé <[EMAIL PROTECTED]> wrote:
> In other terms, which built-in functions can I safely remove (or rename)
> without getting
> internal errors?
> I hope I can remove or rename all of them without compilation or execution
> errors... What do you
> think?
It depends on your use.
Some functions are used internally and cannot be renamed:
substr()
quote()
LIKE operator (likeFunc)
You may need these as well:
sqlite_rename_table()
sqlite_rename_trigger()
sqlite_detach()
sqlite_attach()
If you run your program with this print statement, you should see
all functions called by your program:
Index: src/expr.c
===================================================================
RCS file: /sqlite/sqlite/src/expr.c,v
retrieving revision 1.315
diff -u -3 -p -r1.315 expr.c
--- src/expr.c 23 Oct 2007 18:55:49 -0000 1.315
+++ src/expr.c 6 Nov 2007 05:09:47 -0000
@@ -1371,6 +1371,7 @@ static int nameResolverStep(void *pArg,
zId = (char*)pExpr->token.z;
nId = pExpr->token.n;
+ if (nId>0 && zId) printf("TK_FUNCTION: %.*s\n", nId, zId);
pDef = sqlite3FindFunction(pParse->db, zId, nId, n, enc, 0);
if( pDef==0 ){
pDef = sqlite3FindFunction(pParse->db, zId, nId, -1, enc, 0);
For example:
SQLite version 3.5.1
Enter ".help" for instructions
sqlite> create table foo(a);
sqlite> alter table "foo" rename to "goo";
TK_FUNCTION: sqlite_rename_table
TK_FUNCTION: sqlite_rename_trigger
TK_FUNCTION: LIKE
TK_FUNCTION: substr
sqlite> vacuum;
TK_FUNCTION: substr
TK_FUNCTION: substr
TK_FUNCTION: LIKE
TK_FUNCTION: substr
TK_FUNCTION: LIKE
TK_FUNCTION: quote
TK_FUNCTION: quote
TK_FUNCTION: quote
TK_FUNCTION: quote
TK_FUNCTION: quote
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