Commit 8766627d authored by Sinisa@sinisa.nasamreza.org's avatar Sinisa@sinisa.nasamreza.org
Browse files

Fixes for offset bug in UNION's and making UNION's obey 

SELECT_DEFAULT_LIMIT
parent a36bb38b

Docs/manual.texi

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@@ -48762,6 +48762,16 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}. 














@itemize @bullet















@item













Fixed bug in UNION's with last offset being transposed to total result set













@item













Fixed that DEFAULT_SELECT_LIMIT is always imposed on UNION's result set 













@item













Fixed that some SELECT options can appear only in the first SELECT













@item













Fixed bug with LIMIT with UNION, where last select is in the braces













@item













Fixed that fulltext works fine with UNION's













@item















Fixed bug with indexless boolean full-text search.















@item















Fixed bug that sometimes appeared when full-text search was used

























mysql-test/r/union.result



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@@ -177,4 +177,14 @@ a













11















12















13













(select * from t1 limit 2) union (select * from t2 limit 20,3);













a













1













2













set SQL_SELECT_LIMIT=2;













(select * from t1 limit 2) union (select * from t2 limit 3);













a













1













2













set SQL_SELECT_LIMIT=DEFAULT;















drop table t1,t2;
























mysql-test/t/union.test



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@@ -84,4 +84,8 @@ insert into t1 values (1),(2),(3),(4),(5);













insert into t2 values (11),(12),(13),(14),(15);















(select * from t1 limit 2) union (select * from t2 limit 3) limit 4;















(select * from t1 limit 2) union (select * from t2 limit 3);













(select * from t1 limit 2) union (select * from t2 limit 20,3);













set SQL_SELECT_LIMIT=2;













(select * from t1 limit 2) union (select * from t2 limit 3);













set SQL_SELECT_LIMIT=DEFAULT;















drop table t1,t2;
























sql/sql_union.cc



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@@ -186,7 +186,10 @@ int mysql_union(THD *thd, LEX *lex,select_result *result)













	  thd->options&= ~OPTION_FOUND_ROWS;















      }















      else 













	thd->select_limit= HA_POS_ERROR;		// no limit













      {













	thd->offset_limit= 0;













	thd->select_limit= thd->default_select_limit;













      }















      if (describe)















	thd->select_limit= HA_POS_ERROR;		// no limit















      res=mysql_select(thd,&result_table_list,