MDEV-21454 Show actual mismatching values in mismatch error messages from...

MDEV-21454 Show actual mismatching values in mismatch error messages from row_import::match_table_columns()

Patch by Hartmut Holzgraefe

mysql-test/suite/innodb/r/innodb-wl5522-1.result

@@ -389,7 +389,7 @@ CREATE TABLE testdb_wl5522.t1 ( i bigint) ENGINE = Innodb;
 ALTER TABLE testdb_wl5522.t1 DISCARD TABLESPACE;
 restore: t1 .ibd and .cfg files
 ALTER TABLE testdb_wl5522.t1 IMPORT TABLESPACE;
-ERROR HY000: Schema mismatch (Column i precise type mismatch.)
+ERROR HY000: Schema mismatch (Column i precise type mismatch, it's 0X408 in the table and 0X403 in the tablespace meta file)
 unlink: t1.ibd
 unlink: t1.cfg
 DROP TABLE testdb_wl5522.t1;

mysql-test/suite/innodb/r/innodb-wl5522.result

@@ -426,7 +426,7 @@ SELECT * FROM t1;
 ERROR HY000: Tablespace has been discarded for table `t1`
 restore: t1 .ibd and .cfg files
 ALTER TABLE t1 IMPORT TABLESPACE;
-ERROR HY000: Schema mismatch (Column c2 precise type mismatch.)
+ERROR HY000: Schema mismatch (Column c2 precise type mismatch, it's 0X408 in the table and 0X403 in the tablespace meta file)
 unlink: t1.ibd
 unlink: t1.cfg
 DROP TABLE t1;

mysql-test/suite/innodb_zip/r/wl5522_zip.result

@@ -410,7 +410,7 @@ SELECT * FROM t1;
 ERROR HY000: Tablespace has been discarded for table `t1`
 restore: t1 .ibd and .cfg files
 ALTER TABLE t1 IMPORT TABLESPACE;
-ERROR HY000: Schema mismatch (Column c2 precise type mismatch.)
+ERROR HY000: Schema mismatch (Column c2 precise type mismatch, it's 0X408 in the table and 0X403 in the tablespace meta file)
 unlink: t1.ibd
 unlink: t1.cfg
 DROP TABLE t1;

storage/innobase/row/row0import.cc

@@ -1156,8 +1156,10 @@ row_import::match_table_columns(
 				ib_errf(thd,
 					IB_LOG_LEVEL_ERROR,
 					ER_TABLE_SCHEMA_MISMATCH,
-					 "Column %s precise type mismatch.",
-					 col_name);
+					"Column %s precise type mismatch,"
+					" it's 0X%X in the table and 0X%X"
+					" in the tablespace meta file",
+					col_name, col->prtype, cfg_col->prtype);
 				err = DB_ERROR;
 			}
 
@@ -1165,8 +1167,10 @@ row_import::match_table_columns(
 				ib_errf(thd,
 					IB_LOG_LEVEL_ERROR,
 					ER_TABLE_SCHEMA_MISMATCH,
-					 "Column %s main type mismatch.",
-					 col_name);
+					"Column %s main type mismatch,"
+					" it's 0X%X in the table and 0X%X"
+					" in the tablespace meta file",
+					col_name, col->mtype, cfg_col->mtype);
 				err = DB_ERROR;
 			}
 
@@ -1174,8 +1178,10 @@ row_import::match_table_columns(
 				ib_errf(thd,
 					IB_LOG_LEVEL_ERROR,
 					ER_TABLE_SCHEMA_MISMATCH,
-					 "Column %s length mismatch.",
-					 col_name);
+					"Column %s length mismatch,"
+					" it's %u in the table and %u"
+					" in the tablespace meta file",
+					col_name, col->len, cfg_col->len);
 				err = DB_ERROR;
 			}
 
@@ -1184,12 +1190,22 @@ row_import::match_table_columns(
 				ib_errf(thd,
 					IB_LOG_LEVEL_ERROR,
 					ER_TABLE_SCHEMA_MISMATCH,
-					 "Column %s multi-byte len mismatch.",
-					 col_name);
+					"Column %s multi-byte len mismatch,"
+					" it's %u-%u in the table and %u-%u"
+					" in the tablespace meta file",
+					col_name, col->mbminlen, col->mbmaxlen,
+					cfg_col->mbminlen, cfg_col->mbmaxlen);
 				err = DB_ERROR;
 			}
 
 			if (cfg_col->ind != col->ind) {
+				ib_errf(thd,
+					IB_LOG_LEVEL_ERROR,
+					ER_TABLE_SCHEMA_MISMATCH,
+					"Column %s position mismatch,"
+					" it's %u in the table and %u"
+					" in the tablespace meta file",
+					col_name, col->ind, cfg_col->ind);
 				err = DB_ERROR;
 			}
 
@@ -1197,8 +1213,11 @@ row_import::match_table_columns(
 				ib_errf(thd,
 					IB_LOG_LEVEL_ERROR,
 					ER_TABLE_SCHEMA_MISMATCH,
-					 "Column %s ordering mismatch.",
-					 col_name);
+					"Column %s ordering mismatch,"
+					" it's %u in the table and %u"
+					" in the tablespace meta file",
+					col_name, col->ord_part,
+					cfg_col->ord_part);
 				err = DB_ERROR;
 			}
 
@@ -1206,8 +1225,11 @@ row_import::match_table_columns(
 				ib_errf(thd,
 					IB_LOG_LEVEL_ERROR,
 					ER_TABLE_SCHEMA_MISMATCH,
-					 "Column %s max prefix mismatch.",
-					 col_name);
+					"Column %s max prefix mismatch"
+					" it's %u in the table and %u"
+					" in the tablespace meta file",
+					col_name, col->max_prefix,
+					cfg_col->max_prefix);
 				err = DB_ERROR;
 			}
 		}