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https://issues.apache.org/jira/browse/IGNITE-16322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17479343#comment-17479343
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Taras Ledkov edited comment on IGNITE-16322 at 1/20/22, 1:23 PM:
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[~agura], provided SQL example is fully applicable for the current
implementation except for the default case conversion that is used for unquoted
identifiers:
- Postgres: lower case;
- Ignite: upper case.
e.g.:
{{CREATE TABLE Tbl ()}}
Ignite creates "TBL" . Postgres creates "tbl".
UPD: Postgres has [the option
'disableColumnSanitiser'|https://jdbc.postgresql.org/documentation/head/connect.html]
at the JDBC API to disable conversion column names to lower case.
was (Author: tledkov-gridgain):
[~agura], provided SQL example is fully applicable for the current
implementation except for the default case conversion that is used for unquoted
identifiers:
- Postgres: lower case;
- Ignite: upper case.
e.g.:
{{CREATE TABLE Tbl ()}}
Ignite creates "TBL" . Postgres creates "tbl".
UPD: Postgres has [the option
'disableColumnSanitiser'|https://jdbc.postgresql.org/documentation/head/connect.html]
at the JDBC API to enable conversion column names to lower case.
> Database object names case inconsisten between SQL and KV API
> -------------------------------------------------------------
>
> Key: IGNITE-16322
> URL: https://issues.apache.org/jira/browse/IGNITE-16322
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Affects Versions: 3.0.0-alpha3
> Reporter: Taras Ledkov
> Assignee: Taras Ledkov
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-alpha5
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Examples fail with NPE because table with the specified name does not exist.
> The actual table name is PUBLIC.ACCOUNTS (all uppercase), same for column
> names - ACCOUNTNUMBER and so on.
> *Current behavior*
> {{CREATE TABLE mytable(id INT, val INT)}}; -> creates PUBLIC.MYTABLE (ID, VAL)
> {{ignite.tables().table("public.mytable");}} -> fails with table not found
> {{ignite.tables().table("PUBLIC.MYTABLE ");}} -> returns PUBLIC.MYTABLE
> {{CREATE TABLE \"MyTable\" (id INT, val INT)}}; -> creates PUBLIC.MyTable(ID,
> VAL)
> {{ignite.tables().table("PUBLIC.MyTable");}} -> returns PUBLIC.MyTable
> Tuple / column behavior:
> {{CREATE TABLE MyTable (id INT, \"Id\" INT, val INT)}}; -> creates
> PUBLIC.MYTABLE (ID, Id, VAL)
> {{tbl.get().value("id")}} -> fails with error: column not found
> {{tbl.get().value("ID")}} -> returns ID column's value
> {{tbl.get().value("Id")}} -> returns Id column's value
> *Proposed Fixes*
> *1. Use case insensitive collation to compare and lookup database object*
> e.g.
> {{CREATE TABLE MyTable (id INT, val INT)}}; -> creates PUBLIC.MYTABLE (ID,
> VAL)
> {{ignite.tables().table("public.mytable");}} -> returns PUBLIC.MYTABLE
> {{CREATE TABLE \"MyTable\" (id INT, val INT)}}; -> fails with error:
> PUBLIC.MYTABLE already exists,
> Tuple / column behavior:
> {{CREATE TABLE MyTable (id INT, \"Id\" INT, val INT)}}; -> fails with error:
> duplicate column name: ID
> {{tbl.get().value("id")}} -> returns ID column's value
> {{tbl.get().value("Id")}} -> returns ID column's value
> *2. Case sensitive collation for DB object names and parse string argument of
> the name passed through API*
> Use quotation for string values by API
> {{CREATE TABLE MyTable (id INT, val INT)}}; -> creates PUBLIC.MYTABLE
> {{ignite.tables().table("public.mytable");}} -> returns PUBLIC.MYTABLE
> {{CREATE TABLE \"MyTable\" (id INT, val INT)}}; -> creates PUBLIC.MyTable
> {{ignite.tables().table("public.\"MyTable\"");}} -> returns PUBLIC.MyTable
> Tuple / column behavior:
> {{CREATE TABLE MyTable (id INT, \"Id\" INT, val INT)}}; -> creates
> PUBLIC.MYTABLE (ID, Id, VAL)
> {{tbl.get().value("id")}} -> returns ID column's value
> {{tbl.get().value("Id")}} -> returns ID column's value
> {{tbl.get().value("\"Id\"")}} -> returns Id column's value
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