igor@rurik.mysql.com
3938ac5436
This ChangeSet Introdices Item_equal.
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The objects of this class represent multiple conjunctive equalities
in where conditions: =(f1,f2,...fn) <=> f1=f2 and f2= ... and =fn.
The objects are used to generate new possibale paths to access
the tables when executing a query.
They are also used to optimize the execution plan
chosen by the optimizer for the query.
2003-11-26 17:23:52 -08:00
bell@laptop.sanja.is.com.ua
ddf4d1e529
fixed printability of Items (all items except subselects)
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(SCRUM) (WL#1274)
2003-10-12 17:56:05 +03:00
bell@laptop.sanja.is.com.ua
e527f268d5
fixed error names
2003-10-06 22:35:05 +03:00
bell@sanja.is.com.ua
2ae8a00b2a
Item tree iterator
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fixed dependence of items from reduced subquery
(SCRUM)
2003-07-02 13:12:18 +03:00
bell@sanja.is.com.ua
5eaaf8e732
after review changes (SCRUM)
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removed outer resolving flag (because of movingtransformation after fix_fields)
2003-07-02 01:45:22 +03:00
monty@mashka.mysql.fi
48558055ed
Move tmp_table_used to THD
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Optimize depending sub querys
Remove valgrind warnings
2003-02-10 17:59:16 +02:00
bell@sanja.is.com.ua
e294751c41
fixed bug in determinating uncacheable queries
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new fatal_error interface to assign is_fatal_error and ne.report_error
commant about Item_row
2003-01-30 22:15:44 +02:00
bell@sanja.is.com.ua
5ed5dac01b
cyclic reference test removed, becouse testing of Item::fixed field apply more strict limitation
2003-01-30 14:35:07 +02:00
bell@sanja.is.com.ua
a662f7e105
fixed row items with group functions
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fixed layout
2003-01-29 20:44:47 +02:00
monty@mashka.mysql.fi
25c393a12e
Portability fixes (for windows)
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Some changes to the prepared statement protocol to make it easier to use and faster.
2003-01-21 21:07:59 +02:00
monty@mashka.mysql.fi
22aaac013b
Fixed that derived tables are properly droped
2003-01-07 11:45:06 +02:00
bell@sanja.is.com.ua
945758f0ec
post-post-review fix (SCRUM)
2003-01-02 12:24:33 +02:00
bell@sanja.is.com.ua
c7a02249f5
postreviews fix (SCRUM related)
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reordered Item_row class variables to be sorted by memory size
2002-12-31 18:39:16 +02:00
bell@sanja.is.com.ua
1dd7cb52ae
support of subselect without FROM reducing (SCRUM)
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fixed bug of calling setup_fields without correct lex->current_select pointer in mysql_derived
more correct creation of reference in Item_field::fix_field
2002-12-26 01:28:59 +02:00
bell@sanja.is.com.ua
b63f230346
row IN subselects (SCRUM)
2002-12-19 21:15:09 +02:00
bell@sanja.is.com.ua
5fc21bc187
postreview fix (SCRUM)
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NULL fixed
max_length fixed
layout fixed
2002-12-10 18:10:00 +02:00
bell@sanja.is.com.ua
b1beb31400
Row item fixing (SCRUM related)
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Inserted comment
2002-12-07 16:00:39 +02:00
bell@sanja.is.com.ua
39ddd2dcb4
checking columns of top items
2002-11-29 12:30:04 +02:00
bell@sanja.is.com.ua
7a9f47759e
basic row Items (SCRUM)
2002-11-15 20:32:09 +02:00
