[
https://issues.apache.org/jira/browse/CSV-290?focusedWorklogId=812226&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-812226
]
ASF GitHub Bot logged work on CSV-290:
--------------------------------------
Author: ASF GitHub Bot
Created on: 26/Sep/22 20:29
Start Date: 26/Sep/22 20:29
Worklog Time Spent: 10m
Work Description: angusdev commented on PR #265:
URL: https://github.com/apache/commons-csv/pull/265#issuecomment-1258595192
Tested the behaviour of import and export are consistent.
Test case: export csv/tsv from PostgreSQL, read by commons-cvs and write to
new csv/tsv, import to PostgreSQL, export csv/tsv again. compare the 1st and
2nd export file
```sql
drop table COMMONS_CSV_PSQL_TEST;
create table COMMONS_CSV_PSQL_TEST (ID INTEGER, COL1 VARCHAR, COL2 VARCHAR,
COL3 VARCHAR, COL4 VARCHAR);
insert into COMMONS_CSV_PSQL_TEST select 1, 'abc', 'test line 1' || chr(10)
|| 'test line 2', null, '';
insert into COMMONS_CSV_PSQL_TEST select 2, 'xyz', '\b:' || chr(8) || ' \n:'
|| chr(10) || ' \r:' || chr(13), 'a', 'b';
insert into COMMONS_CSV_PSQL_TEST values (3, 'a', 'b,c,d', '"quoted"', 'e');
copy COMMONS_CSV_PSQL_TEST to '/tmp/psql.csv' with (FORMAT CSV);
copy COMMONS_CSV_PSQL_TEST to '/tmp/psql.tsv';
```
use commons-csv to read '/tmp/psql.csv' and write to '/tmp/outpsql.csv',
same for 'psql.tsv'
```sql
truncate table COMMONS_CSV_PSQL_TEST;
copy COMMONS_CSV_PSQL_TEST(ID, COL1, COL2, COL3, COL4) from
'/tmp/outpsql.csv' with (FORMAT CSV);
copy COMMONS_CSV_PSQL_TEST to '/tmp/psql2.csv' with (FORMAT CSV);
truncate table COMMONS_CSV_PSQL_TEST;
copy COMMONS_CSV_PSQL_TEST(ID, COL1, COL2, COL3, COL4) from
'/tmp/outpsql.tsv';
copy COMMONS_CSV_PSQL_TEST to '/tmp/psql2.tsv';
```
diff /tmp/psql.csv /tmp/psql2.csv
(no difference)
diff /tmp/psql.tsv /tmp/psql2.tsv
(no difference)
Issue Time Tracking
-------------------
Worklog Id: (was: 812226)
Time Spent: 1h (was: 50m)
> Produced CSV using PostgreSQL format cannot be read
> ---------------------------------------------------
>
> Key: CSV-290
> URL: https://issues.apache.org/jira/browse/CSV-290
> Project: Commons CSV
> Issue Type: Bug
> Components: Parser
> Affects Versions: 1.6, 1.9.0
> Reporter: Anatoliy Artemenko
> Priority: Major
> Time Spent: 1h
> Remaining Estimate: 0h
>
> {code:java}
> // code placeholder
> {code}
> CSV, produced using printer:
>
> CSVPrinter printer = new CSVPrinter(sw,
> CSVFormat.POSTGRESQL_CSV.withFirstRecordAsHeader());
>
> cannot be be read with same format parser:
>
> CSVParser parser = new CSVParser(new StringReader(sw.toString()),
> CSVFormat.POSTGRESQL_CSV.withFirstRecordAsHeader());
>
> To reproduce:
>
> {code:java}
> StringWriter sw = new StringWriter();
> CSVPrinter printer = new CSVPrinter(sw,
> CSVFormat.POSTGRESQL_CSV.withFirstRecordAsHeader());
> printer.printRecord("column1", "column2");
> printer.printRecord("v11", "v12");
> printer.printRecord("v21", "v22");
> printer.close();
> CSVParser parser = new CSVParser(new StringReader(sw.toString()),
> CSVFormat.POSTGRESQL_CSV.withFirstRecordAsHeader());
> System.out.println("headers: " +
> Arrays.equals(parser.getHeaderNames().toArray(), new String[] {"column1",
> "column2"}));
> Iterator<CSVRecord> i = parser.iterator();
> System.out.println("row: " + Arrays.equals(i.next().toList().toArray(), new
> String[] {"v11", "v12"}));
> System.out.println("row: " + Arrays.equals(i.next().toList().toArray(), new
> String[] {"v21", "v22"}));{code}
> I'd expect the above code to work, but it fails:
> {code:java}
> java.io.IOException: (startline 1) EOF reached before encapsulated token
> finishedjava.io.IOException: (startline 1) EOF reached before encapsulated
> token finished
> at org.apache.commons.csv.Lexer.parseEncapsulatedToken(Lexer.java:371)
> at org.apache.commons.csv.Lexer.nextToken(Lexer.java:285)
> at org.apache.commons.csv.CSVParser.nextRecord(CSVParser.java:701)
> at org.apache.commons.csv.CSVParser.createHeaders(CSVParser.java:480)
> at org.apache.commons.csv.CSVParser.<init>(CSVParser.java:432)
> at org.apache.commons.csv.CSVParser.<init>(CSVParser.java:398)
> at Test.main(Test.java:25)
> {code}
>
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