SUBSTRING of non-text/-blob is described to return NONE character set in DSQL [CORE6160]

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Submitted by: @asfernandes

The correct character set should be ASCII.

set sqlda_display on;
select substring(1 from 1 for 1) from rdb$database;
select substring(current_date from 1 for 1) from rdb$database;

Commits: 327c642 329a5c0

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Commented by: Sean Leyne (seanleyne)

Adriano,

it seems odd that ASCII character set would be used. I would have expected the character set to be, either: (a) the character set of the database [but I don't see that value exposed anywhere], or (b) the character set of the DB connection,

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Commented by: @asfernandes

If DB and connection charset are none, it would be described as NONE. Always using ASCII (as numbers/dates are representable on it) it's more complete IMO.

But if connection charset is something else, DSQL will convert and describe with the connection charset, as it does with everything.

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Modified by: @asfernandes

assignee: Adriano dos Santos Fernandes [ asfernandes ]

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Modified by: @asfernandes

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 4.0 Beta 2 [ 10888 ]

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Modified by: @pavel-zotov

status: Resolved [ 5 ] => Resolved [ 5 ]

QA Status: No test => Done successfully

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Modified by: @pavel-zotov

status: Resolved [ 5 ] => Closed [ 6 ]