Merge pull request #22 from JesperWisborgKrogh/dev/20140820_extract_from_file_name

Dev/20140820 extract from file name

Author: MarkLeith

README.md

@@ -1206,7 +1206,7 @@ Currently relies on the fact that a table data file will be within a specified d
 
 ##### Returns
 
-VARCHAR(512)
+VARCHAR(64)
 
 ##### Example
 ```SQL
@@ -1233,7 +1233,7 @@ Useful for when interacting with Performance Schema data concerning IO statistic
 
 ##### Returns
 
-VARCHAR(512)
+VARCHAR(64)
 
 ##### Example
 ```SQL

functions/extract_schema_from_file_name.sql

@@ -20,7 +20,7 @@ DELIMITER $$
 CREATE DEFINER='root'@'localhost' FUNCTION extract_schema_from_file_name (
         path VARCHAR(512)
     )
-    RETURNS VARCHAR(512) 
+    RETURNS VARCHAR(64) 
     COMMENT '
              Description
              -----------
@@ -43,7 +43,7 @@ CREATE DEFINER='root'@'localhost' FUNCTION extract_schema_from_file_name (
              Returns
              -----------
 
-             VARCHAR(512)
+             VARCHAR(64)
 
              Example
              -----------
@@ -59,7 +59,7 @@ CREATE DEFINER='root'@'localhost' FUNCTION extract_schema_from_file_name (
     SQL SECURITY INVOKER
     DETERMINISTIC
     NO SQL
-    RETURN SUBSTRING_INDEX(SUBSTRING_INDEX(REPLACE(path, '\\', '/'), '/', -2), '/', 1)
+    RETURN LEFT(SUBSTRING_INDEX(SUBSTRING_INDEX(REPLACE(path, '\\', '/'), '/', -2), '/', 1), 64);
 $$
 
 DELIMITER ;

functions/extract_table_from_file_name.sql

@@ -20,7 +20,7 @@ DELIMITER $$
 CREATE DEFINER='root'@'localhost' FUNCTION extract_table_from_file_name (
         path VARCHAR(512)
     )
-    RETURNS VARCHAR(512) 
+    RETURNS VARCHAR(64) 
     COMMENT '
              Description
              -----------
@@ -39,7 +39,7 @@ CREATE DEFINER='root'@'localhost' FUNCTION extract_table_from_file_name (
              Returns
              -----------
 
-             VARCHAR(512)
+             VARCHAR(64)
 
              Example
              -----------
@@ -55,7 +55,7 @@ CREATE DEFINER='root'@'localhost' FUNCTION extract_table_from_file_name (
     SQL SECURITY INVOKER
     DETERMINISTIC
     NO SQL
-    RETURN SUBSTRING_INDEX(REPLACE(SUBSTRING_INDEX(REPLACE(path, '\\', '/'), '/', -1), '@0024', '$'), '.', 1);
+    RETURN LEFT(SUBSTRING_INDEX(REPLACE(SUBSTRING_INDEX(REPLACE(path, '\\', '/'), '/', -1), '@0024', '$'), '.', 1), 64);
 $$
 
 DELIMITER ;