[jira] [Work logged] (CSV-290) Produced CSV using PostgreSQL format cannot be read

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CSV-290?focusedWorklogId=811953&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-811953 ]

ASF GitHub Bot logged work on CSV-290:
--------------------------------------

                Author: ASF GitHub Bot
            Created on: 25/Sep/22 21:54
            Start Date: 25/Sep/22 21:54
    Worklog Time Spent: 10m 
      Work Description: angusdev opened a new pull request, #265:
URL: https://github.com/apache/commons-csv/pull/265

   I tested in psql 14.5 Homebrew in Mac M1.
   
   CSVFormat.POSTGRESQL_CSV - special characters are not escaped.
   CSVFormat.POSTGRESQL_TEXT - values are not quoted.
   
   ```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';
   ```
   
   ```
   cat /tmp/psql.csv
   1,abc,"test line 1
   test line 2",,""
   2,xyz,"\b:^H \n:
   \r:^M",a,b
   3,a,"b,c,d","""quoted""",e
   ```
   
   ```
   cat /tmp/psql.tsv
   1    abc    test line 1\ntest line 2               \N
   2    xyz    \\b:\b \\n:\n \\r:\r       a           b
   3    a      b,c,d                      "quoted"    e
   ```




Issue Time Tracking
-------------------

            Worklog Id:     (was: 811953)
    Remaining Estimate: 0h
            Time Spent: 10m

> 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: 10m
>  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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