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89 lines
2.1 KiB
Text
89 lines
2.1 KiB
Text
#
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# Bug#19194 (Right recursion in parser for CASE causes excessive stack
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# usage, limitation)
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#
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--disable_warnings
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DROP PROCEDURE IF EXISTS proc_19194_codegen;
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DROP PROCEDURE IF EXISTS bug_19194_simple;
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DROP PROCEDURE IF EXISTS bug_19194_searched;
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--enable_warnings
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delimiter |;
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CREATE PROCEDURE proc_19194_codegen(
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IN proc_name VARCHAR(50),
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IN count INTEGER,
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IN simple INTEGER,
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OUT body MEDIUMTEXT)
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BEGIN
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DECLARE code MEDIUMTEXT;
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DECLARE i INT DEFAULT 1;
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SET code = concat("CREATE PROCEDURE ", proc_name, "(i INT)\n");
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SET code = concat(code, "BEGIN\n");
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SET code = concat(code, " DECLARE str CHAR(10);\n");
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IF (simple)
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THEN
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SET code = concat(code, " CASE i\n");
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ELSE
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SET code = concat(code, " CASE\n");
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END IF;
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WHILE (i <= count)
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DO
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IF (simple)
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THEN
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SET code = concat(code, " WHEN ", i, " THEN SET str=\"", i, "\";\n");
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ELSE
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SET code = concat(code, " WHEN i=", i, " THEN SET str=\"", i, "\";\n");
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END IF;
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SET i = i + 1;
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END WHILE;
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SET code = concat(code, " ELSE SET str=\"unknown\";\n");
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SET code = concat(code, " END CASE;\n");
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SET code = concat(code, " SELECT str;\n");
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SET code = concat(code, "END\n");
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SET body = code;
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END|
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delimiter ;|
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set @body="";
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call proc_19194_codegen("test_simple", 10, 1, @body);
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select @body;
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call proc_19194_codegen("test_searched", 10, 0, @body);
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select @body;
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--disable_query_log
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call proc_19194_codegen("bug_19194_simple", 5000, 1, @body);
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let $proc_body = `select @body`;
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eval $proc_body;
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call proc_19194_codegen("bug_19194_searched", 5000, 1, @body);
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let $proc_body = `select @body`;
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eval $proc_body;
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--enable_query_log
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CALL bug_19194_simple(1);
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CALL bug_19194_simple(2);
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CALL bug_19194_simple(1000);
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CALL bug_19194_simple(4998);
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CALL bug_19194_simple(4999);
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CALL bug_19194_simple(9999);
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CALL bug_19194_searched(1);
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CALL bug_19194_searched(2);
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CALL bug_19194_searched(1000);
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CALL bug_19194_searched(4998);
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CALL bug_19194_searched(4999);
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CALL bug_19194_searched(9999);
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DROP PROCEDURE proc_19194_codegen;
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DROP PROCEDURE bug_19194_simple;
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DROP PROCEDURE bug_19194_searched;
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