Move test that uses many tables (in query_cache.test) to separate test so that we can get it 'skipped' instead of 'failed' on system where we can't open many files.

client/mysqltest.c:
  Fix that LET can be used with queries that return multiple columns
libmysql/errmsg.c:
  Extend socket name to 100 characters in error messages
libmysql/libmysql.c:
  Reset some variables to make ensure that we can call mysql_server_init()/mysql_server_end() many times
mysql-test/mysql-test-run.sh:
  Set open-files-limit to 1024
mysql-test/r/loaddata.result:
  Add test case for LOAD DATA bug report (was not a bug)
mysql-test/r/query_cache.result:
  Move test with many tables to separate test
mysql-test/r/select_safe.result:
  Make test repeatable
mysql-test/t/loaddata.test:
  Add test case for LOAD DATA bug report (was not a bug)
mysql-test/t/query_cache.test:
  Move test with many tables to separate test
mysql-test/t/select_safe.test:
  Make test repeatable
sql/field.cc:
  Portability fix for gcc 3.3
sql/mysqld.cc:
  Store in open_files_limit the true number of files we can open (if system supports it)
sql/sql_load.cc:
  Safety fix

4 files changed, 45 insertions, 28 deletions

diff --git a/mysql-test/t/loaddata.test b/mysql-test/t/loaddata.test
index e63f0780e3e..732ed248702 100644
--- a/mysql-test/t/loaddata.test
+++ b/mysql-test/t/loaddata.test
@@ -14,6 +14,7 @@ load data infile '../../std_data/loaddata1.dat' into table t1 fields terminated
 SELECT * from t1;
 drop table t1;
 
-
-
-
+create table t1 (a text, b text);
+load data infile '../../std_data/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
+select concat('|',a,'|'), concat('|',b,'|') from t1;
+drop table t1;
diff --git a/mysql-test/t/query_cache.test b/mysql-test/t/query_cache.test
index f72a4a504a0..9e1c22ac642 100644
--- a/mysql-test/t/query_cache.test
+++ b/mysql-test/t/query_cache.test
@@ -10,7 +10,7 @@ flush query cache; # This crashed in some versions
 flush query cache; # This crashed in some versions
 reset query cache;
 flush status;
-drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33,t34,t35,t36,t37,t38,t39,t40,t41,t42,t43,t44,t45,t46,t47,t48,t49,t50,t51,t52,t53,t54,t55,t56,t57,t58,t59,t60,t61,t62,t63,t64,t65,t66,t67,t68,t69,t70,t71,t72,t73,t74,t75,t76,t77,t78,t79,t80,t81,t82,t83,t84,t85,t86,t87,t88,t89,t90,t91,t92,t93,t94,t95,t96,t97,t98,t99,t100,t101,t102,t103,t104,t105,t106,t107,t108,t109,t110,t111,t112,t113,t114,t115,t116,t117,t118,t119,t120,t121,t122,t123,t124,t125,t126,t127,t128,t129,t130,t131,t132,t133,t134,t135,t136,t137,t138,t139,t140,t141,t142,t143,t144,t145,t146,t147,t148,t149,t150,t151,t152,t153,t154,t155,t156,t157,t158,t159,t160,t161,t162,t163,t164,t165,t166,t167,t168,t169,t170,t171,t172,t173,t174,t175,t176,t177,t178,t179,t180,t181,t182,t183,t184,t185,t186,t187,t188,t189,t190,t191,t192,t193,t194,t195,t196,t197,t198,t199,t200,t201,t202,t203,t204,t205,t206,t207,t208,t209,t210,t211,t212,t213,t214,t215,t216,t217,t218,t219,t220,t221,t222,t223,t224,t225,t226,t227,t228,t229,t230,t231,t232,t233,t234,t235,t236,t237,t238,t239,t240,t241,t242,t243,t244,t245,t246,t247,t248,t249,t250,t251,t252,t253,t254,t255,t256,t257,t00,mysqltest.t1;
+drop table if exists t1,t2,t3;
 drop database if exists mysqltest;
 
 #
@@ -450,25 +450,3 @@ select * from t1;
 show status like "Qcache_queries_in_cache";
 SET OPTION SQL_SELECT_LIMIT=DEFAULT;
 drop table t1;
-
-#
-# more then 255 (257) merged tables test
-#
-flush status;
-disable_query_log;
-let $1 = 257;
-while ($1)
-{
-  eval create table t$1(a int);
-  eval insert into t$1 values (1),(2);
-  dec $1;
-}
-create table t00 (a int) type=MERGE UNION=(t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33,t34,t35,t36,t37,t38,t39,t40,t41,t42,t43,t44,t45,t46,t47,t48,t49,t50,t51,t52,t53,t54,t55,t56,t57,t58,t59,t60,t61,t62,t63,t64,t65,t66,t67,t68,t69,t70,t71,t72,t73,t74,t75,t76,t77,t78,t79,t80,t81,t82,t83,t84,t85,t86,t87,t88,t89,t90,t91,t92,t93,t94,t95,t96,t97,t98,t99,t100,t101,t102,t103,t104,t105,t106,t107,t108,t109,t110,t111,t112,t113,t114,t115,t116,t117,t118,t119,t120,t121,t122,t123,t124,t125,t126,t127,t128,t129,t130,t131,t132,t133,t134,t135,t136,t137,t138,t139,t140,t141,t142,t143,t144,t145,t146,t147,t148,t149,t150,t151,t152,t153,t154,t155,t156,t157,t158,t159,t160,t161,t162,t163,t164,t165,t166,t167,t168,t169,t170,t171,t172,t173,t174,t175,t176,t177,t178,t179,t180,t181,t182,t183,t184,t185,t186,t187,t188,t189,t190,t191,t192,t193,t194,t195,t196,t197,t198,t199,t200,t201,t202,t203,t204,t205,t206,t207,t208,t209,t210,t211,t212,t213,t214,t215,t216,t217,t218,t219,t220,t221,t222,t223,t224,t225,t226,t227,t228,t229,t230,t231,t232,t233,t234,t235,t236,t237,t238,t239,t240,t241,t242,t243,t244,t245,t246,t247,t248,t249,t250,t251,t252,t253,t254,t255,t256,t257) INSERT_METHOD=FIRST;
-enable_query_log;
-select count(*) from t00;
-select count(*) from t00;
-show status like "Qcache_queries_in_cache";
-show status like "Qcache_hits";
-delete from t256;
-show status like "Qcache_queries_in_cache";
-drop table t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33,t34,t35,t36,t37,t38,t39,t40,t41,t42,t43,t44,t45,t46,t47,t48,t49,t50,t51,t52,t53,t54,t55,t56,t57,t58,t59,t60,t61,t62,t63,t64,t65,t66,t67,t68,t69,t70,t71,t72,t73,t74,t75,t76,t77,t78,t79,t80,t81,t82,t83,t84,t85,t86,t87,t88,t89,t90,t91,t92,t93,t94,t95,t96,t97,t98,t99,t100,t101,t102,t103,t104,t105,t106,t107,t108,t109,t110,t111,t112,t113,t114,t115,t116,t117,t118,t119,t120,t121,t122,t123,t124,t125,t126,t127,t128,t129,t130,t131,t132,t133,t134,t135,t136,t137,t138,t139,t140,t141,t142,t143,t144,t145,t146,t147,t148,t149,t150,t151,t152,t153,t154,t155,t156,t157,t158,t159,t160,t161,t162,t163,t164,t165,t166,t167,t168,t169,t170,t171,t172,t173,t174,t175,t176,t177,t178,t179,t180,t181,t182,t183,t184,t185,t186,t187,t188,t189,t190,t191,t192,t193,t194,t195,t196,t197,t198,t199,t200,t201,t202,t203,t204,t205,t206,t207,t208,t209,t210,t211,t212,t213,t214,t215,t216,t217,t218,t219,t220,t221,t222,t223,t224,t225,t226,t227,t228,t229,t230,t231,t232,t233,t234,t235,t236,t237,t238,t239,t240,t241,t242,t243,t244,t245,t246,t247,t248,t249,t250,t251,t252,t253,t254,t255,t256,t257,t00;
diff --git a/mysql-test/t/query_cache_merge.test b/mysql-test/t/query_cache_merge.test
new file mode 100644
index 00000000000..9d9e311af06
--- /dev/null
+++ b/mysql-test/t/query_cache_merge.test
@@ -0,0 +1,38 @@
+# Test query cache with many tables
+
+--source include/have_query_cache.inc
+let $LIMIT=`SHOW VARIABLES LIKE 'open_files_limit'`;
+let $MIN_LIMIT=100
+let $MAX_LIMIT=65536
+--source include/check_var_limit.inc
+
+SET @@global.query_cache_size=1355776;
+
+#
+# more then 255 (257) merged tables test
+#
+
+flush status;
+disable_query_log;
+--disable_warnings
+let $1 = 257;
+while ($1)
+{
+  eval drop table if exists t$1;
+  eval create table t$1(a int);
+  eval insert into t$1 values (1),(2);
+  dec $1;
+}
+--enable_warnings
+
+create table t00 (a int) type=MERGE UNION=(t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33,t34,t35,t36,t37,t38,t39,t40,t41,t42,t43,t44,t45,t46,t47,t48,t49,t50,t51,t52,t53,t54,t55,t56,t57,t58,t59,t60,t61,t62,t63,t64,t65,t66,t67,t68,t69,t70,t71,t72,t73,t74,t75,t76,t77,t78,t79,t80,t81,t82,t83,t84,t85,t86,t87,t88,t89,t90,t91,t92,t93,t94,t95,t96,t97,t98,t99,t100,t101,t102,t103,t104,t105,t106,t107,t108,t109,t110,t111,t112,t113,t114,t115,t116,t117,t118,t119,t120,t121,t122,t123,t124,t125,t126,t127,t128,t129,t130,t131,t132,t133,t134,t135,t136,t137,t138,t139,t140,t141,t142,t143,t144,t145,t146,t147,t148,t149,t150,t151,t152,t153,t154,t155,t156,t157,t158,t159,t160,t161,t162,t163,t164,t165,t166,t167,t168,t169,t170,t171,t172,t173,t174,t175,t176,t177,t178,t179,t180,t181,t182,t183,t184,t185,t186,t187,t188,t189,t190,t191,t192,t193,t194,t195,t196,t197,t198,t199,t200,t201,t202,t203,t204,t205,t206,t207,t208,t209,t210,t211,t212,t213,t214,t215,t216,t217,t218,t219,t220,t221,t222,t223,t224,t225,t226,t227,t228,t229,t230,t231,t232,t233,t234,t235,t236,t237,t238,t239,t240,t241,t242,t243,t244,t245,t246,t247,t248,t249,t250,t251,t252,t253,t254,t255,t256,t257) INSERT_METHOD=FIRST;
+enable_query_log;
+select count(*) from t00;
+select count(*) from t00;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_hits";
+delete from t256;
+show status like "Qcache_queries_in_cache";
+drop table t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33,t34,t35,t36,t37,t38,t39,t40,t41,t42,t43,t44,t45,t46,t47,t48,t49,t50,t51,t52,t53,t54,t55,t56,t57,t58,t59,t60,t61,t62,t63,t64,t65,t66,t67,t68,t69,t70,t71,t72,t73,t74,t75,t76,t77,t78,t79,t80,t81,t82,t83,t84,t85,t86,t87,t88,t89,t90,t91,t92,t93,t94,t95,t96,t97,t98,t99,t100,t101,t102,t103,t104,t105,t106,t107,t108,t109,t110,t111,t112,t113,t114,t115,t116,t117,t118,t119,t120,t121,t122,t123,t124,t125,t126,t127,t128,t129,t130,t131,t132,t133,t134,t135,t136,t137,t138,t139,t140,t141,t142,t143,t144,t145,t146,t147,t148,t149,t150,t151,t152,t153,t154,t155,t156,t157,t158,t159,t160,t161,t162,t163,t164,t165,t166,t167,t168,t169,t170,t171,t172,t173,t174,t175,t176,t177,t178,t179,t180,t181,t182,t183,t184,t185,t186,t187,t188,t189,t190,t191,t192,t193,t194,t195,t196,t197,t198,t199,t200,t201,t202,t203,t204,t205,t206,t207,t208,t209,t210,t211,t212,t213,t214,t215,t216,t217,t218,t219,t220,t221,t222,t223,t224,t225,t226,t227,t228,t229,t230,t231,t232,t233,t234,t235,t236,t237,t238,t239,t240,t241,t242,t243,t244,t245,t246,t247,t248,t249,t250,t251,t252,t253,t254,t255,t256,t257,t00;
+
+SET @@global.query_cache_size=0;
diff --git a/mysql-test/t/select_safe.test b/mysql-test/t/select_safe.test
index 206f911d028..904479635c2 100644
--- a/mysql-test/t/select_safe.test
+++ b/mysql-test/t/select_safe.test
@@ -56,9 +56,9 @@ SELECT * from t1;
 SELECT @@MAX_SEEKS_FOR_KEY;
 analyze table t1;
 insert into t1 values (null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a");
-explain select * from t1,t1 as t2 where t1.b=t2.b;
+explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
 set MAX_SEEKS_FOR_KEY=1;
-explain select * from t1,t1 as t2 where t1.b=t2.b;
+explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
 SET MAX_SEEKS_FOR_KEY=DEFAULT;
 
 drop table t1;