初版

build/lib/mysql/mysql-test/include/view_alias.inc

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+# Routine to be called by t/view.inc
+#
+# The variable $after_select must be set before calling this routine.
+
+eval CREATE VIEW v1 AS SELECT $after_select;
+SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'test' AND TABLE_NAME = 'v1';
+#
+# Extract the VIEW's SELECT from INFORMATION_SCHEMA.VIEWS
+let $query1 = `SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_SCHEMA = 'test' AND TABLE_NAME = 'v1'`;
+#
+# Extract the VIEW's SELECT from SHOW CREATE VIEW
+# SHOW CREATE VIEW v1
+# View    Create View     character_set_client    collation_connection
+# v1      CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select '<--- .....
+let $value= query_get_value(SHOW CREATE VIEW v1, Create View, 1);
+let $query2 = `SELECT SUBSTR("$value",INSTR("$value",' as select ') + CHAR_LENGTH(' as '))`;
+DROP VIEW v1;
+
+# Recreate the view based on SELECT from INFORMATION_SCHEMA.VIEWS
+eval CREATE VIEW v1 AS $query1;
+DROP VIEW v1;
+# Recreate the view based on SHOW CREATE VIEW
+eval CREATE VIEW v1 AS $query2;
+DROP VIEW v1;
+