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https://issues.apache.org/jira/browse/CALCITE-2208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16798023#comment-16798023
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Lai Zhou commented on CALCITE-2208:
-----------------------------------
[~julianhyde], I make a pr for this issue，the changes：
1. Schemas now uses the config of current connection to make context.
2. CalcitePrepareImpl now uses the context's config rather than a default config
to create a SqlParser in the 'parse_' method.
> MaterializedViewTable.MATERIALIZATION_CONNECTION breaks lex and case
> sensitivity for end user
> ---------------------------------------------------------------------------------------------
>
> Key: CALCITE-2208
> URL: https://issues.apache.org/jira/browse/CALCITE-2208
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.15.0, 1.16.0
> Reporter: Piotr Bojko
> Priority: Major
>
> MaterializedViewTable.MATERIALIZATION_CONNECTION used for validating views
> uses ORACLE lex by default. Calcite expands the view sql to uppercase so when
> schemas used in such view sql are used are declared in lowercase - Calcite
> does not find needed objects to resolve and validate the view sql.
> It does really not work even when end user creates connection with
> lex=oracle, but uses uppercase for the names of its tables.
> It would be best when MaterializedViewTable.MATERIALIZATION_CONNECTION would
> be replaced by connection of an end user or dynamically created connection
> with passed lex from end user connection.
> Quick and dirty solution is to create
> MaterializedViewTable.MATERIALIZATION_CONNECTION with caseSensitive=false;
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