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Khurram Faraaz commented on DRILL-2849: --------------------------------------- I tried the tests, and I see an error message, earlier we did see the queries returned results. Is this expected behavior ? Should we allow new line characters inside of quoted strings ? {code} 0: jdbc:drill:> select count(cast(columns[0] as double)),max(cast(columns[0] as double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), columns[7] from `deletions/deletions-00000-of-00020.csv` group by columns[7]; Error: SYSTEM ERROR: Error processing input: Cannot use newline character within quoted string, line=4071, char=513510. Content parsed: [ ] Fragment 2:0 [Error Id: fe72951a-7a1e-41fe-abd7-c48dfdc74038 on centos-01.qa.lab:31010] (state=,code=0) {code} {code} 0: jdbc:drill:> select count(cast(columns[0] as double)),max(cast(columns[0] as double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), columns[7] from `csvToCSV_00000_of_00020/0_0_0.csv` group by columns[7]; Error: SYSTEM ERROR: Error processing input: Cannot use newline character within quoted string, line=4071, char=513515. Content parsed: [ ] Fragment 2:1 [Error Id: 9db065d1-04e8-422f-962e-0056e117da98 on centos-01.qa.lab:31010] (state=,code=0) {code} {code} 0: jdbc:drill:> select count(cast(columns[0] as double)),max(cast(columns[0] as double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), columns[7] from `deletions-00000-of-00020.csv.gz` group by columns[7]; Error: SYSTEM ERROR: Error processing input: Cannot use newline character within quoted string, line=4071, char=513510. Content parsed: [ ] Fragment 0:0 [Error Id: 45cf2b9e-26df-4a38-a328-8c9bf16a28b0 on centos-01.qa.lab:31010] (state=,code=0) {code} > Difference in query results over CSV file created by CTAS, compared to > results over original CSV file > ------------------------------------------------------------------------------------------------------ > > Key: DRILL-2849 > URL: https://issues.apache.org/jira/browse/DRILL-2849 > Project: Apache Drill > Issue Type: Bug > Components: Storage - Text & CSV > Affects Versions: 0.9.0 > Environment: 64e3ec52b93e9331aa5179e040eca19afece8317 | DRILL-2611: > value vectors should report valid value count | 16.04.2015 @ 13:53:34 EDT > Reporter: Khurram Faraaz > Assignee: Khurram Faraaz > Priority: Critical > Fix For: 1.0.0 > > > Different results are seen for the same query over CSV data file and another > CSV data file created by CTAS using the same CSV file. > Tests were executed on 4 node cluster on CentOS. > I got rid of the header information that is written by CTAS into the new CSV > file that CTAS creates, and then ran my queries over CTAS' CSV file. > query over uncompressed CSV file, deletions/deletions-00000-of-00020.csv > {code} > > select count(cast(columns[0] as double)),max(cast(columns[0] as > > double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), > > columns[7] from `deletions/deletions-00000-of-00020.csv` group by > > columns[7]; > 88 rows selected (6.893 seconds) > ================================================= > {code} > query over CSV file that was created by CTAS. (input to CTAS was > deletions/deletions-00000-of-00020.csv) > Notice there is one more record returned. > {code} > > select count(cast(columns[0] as double)),max(cast(columns[0] as > > double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), > > columns[7] from `csvToCSV_00000_of_00020/0_0_0.csv` group by columns[7]; > > 89 rows selected (6.623 seconds) > ================================================== > {code} > query over compressed CSV file > {code} > > select count(cast(columns[0] as double)),max(cast(columns[0] as > > double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), > > columns[7] from `deletions-00000-of-00020.csv.gz` group by columns[7]; > 88 rows selected (10.526 seconds) > ================================================== > {code} > In the below cases, the count and sum results are different when query is > executed over CSV file that was created by CTAS. ( this may explain why we > see the difference in results in the above queries ? ) > {code} > 0: jdbc:drill:> select count(cast(columns[0] as double)),max(cast(columns[0] > as double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), > columns[7] from `deletions/deletions-00000-of-00020.csv` where columns[7] is > null group by columns[7]; > +------------+------------+------------+------------+------------+ > | EXPR$0 | EXPR$1 | EXPR$2 | EXPR$3 | EXPR$4 | > +------------+------------+------------+------------+------------+ > | 252 | 1.362983396001E12 | 1.165768779027E12 | 1.293794515595635E12 | > null | > +------------+------------+------------+------------+------------+ > 1 row selected (6.013 seconds) > 0: jdbc:drill:> select count(cast(columns[0] as double)),max(cast(columns[0] > as double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), > columns[7] from `deletions-00000-of-00020.csv.gz` where columns[7] is null > group by columns[7]; > +------------+------------+------------+------------+------------+ > | EXPR$0 | EXPR$1 | EXPR$2 | EXPR$3 | EXPR$4 | > +------------+------------+------------+------------+------------+ > | 252 | 1.362983396001E12 | 1.165768779027E12 | 1.293794515595635E12 | > null | > +------------+------------+------------+------------+------------+ > 1 row selected (8.899 seconds) > {code} > Notice that count and sum results are different (from those above) when query > is executed over the CSV file created by CTAS. > {code} > 0: jdbc:drill:> select count(cast(columns[0] as double)),max(cast(columns[0] > as double)),min(cast(columns[0] as double)),avg(cast(columns[0] as double)), > columns[7] from `csvToCSV_00000_of_00020/0_0_0.csv` where columns[7] is null > group by columns[7]; > +------------+------------+------------+------------+------------+ > | EXPR$0 | EXPR$1 | EXPR$2 | EXPR$3 | EXPR$4 | > +------------+------------+------------+------------+------------+ > | 245 | 1.349670663E12 | 1.165768779027E12 | 1.2930281335065144E12 | > null | > +------------+------------+------------+------------+------------+ > 1 row selected (5.736 seconds) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)