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Bug #31221: Optimizer incorrectly identifies impossible WHERE clause

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No warning was generated when a TIMESTAMP with a non-zero time part
 was converted to a DATE value. This caused index lookup to assume
 that this is a valid conversion and was returning rows that match 
 a comparison between a TIMESTAMP value and a DATE keypart.
 Fixed by generating a warning on such a truncation.
This commit is contained in:
gkodinov/kgeorge@magare.gmz
2007-10-18 15:19:04 +03:00
parent 18ecc5bb5a
commit d67cd9e8af
13 changed files with 94 additions and 15 deletions
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6
mysql-test/r/ps_5merge.result
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@@ -2893,11 +2893,13 @@ Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
@@ -2931,7 +2933,6 @@ Warning 1265 Data truncated for column 'c15' at row 1
Warning 1264 Out of range value adjusted for column 'c16' at row 1
Warning 1264 Out of range value adjusted for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c15' at row 1
Warning 1264 Out of range value adjusted for column 'c16' at row 1
Warning 1264 Out of range value adjusted for column 'c17' at row 1
@@ -5914,11 +5915,13 @@ Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
@@ -5952,7 +5955,6 @@ Warning 1265 Data truncated for column 'c15' at row 1
Warning 1264 Out of range value adjusted for column 'c16' at row 1
Warning 1264 Out of range value adjusted for column 'c17' at row 1
Warnings:
Note 1265 Data truncated for column 'c13' at row 1
Warning 1265 Data truncated for column 'c15' at row 1
Warning 1264 Out of range value adjusted for column 'c16' at row 1
Warning 1264 Out of range value adjusted for column 'c17' at row 1