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Cascade deletion in self-referencing table could raise "no current record for fetch operation" error [CORE5322] #5598
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Modified by: Koltcov Viktor (koltcov)description: Can't delete record with cascade foreign key, but it worked in firebird 2.5.2 when try to delete get error test DDL: /******************************************************************************/ SET SQL DIALECT 3; SET NAMES WIN1251; CREATE DATABASE 'TEST.FDB ' /******************************************************************************/ CREATE TABLE "TABLE_A" ( CREATE TABLE "TABLE_B" ( INSERT INTO "TABLE_A" ("ID", "SOME_DATA") VALUES (1, 10); COMMIT WORK; INSERT INTO "TABLE_B" ("ID", "TABLE_A_ID", "SOME_DATA", "PARENT_ID") VALUES (1, 1, 555, NULL); COMMIT WORK; /******************************************************************************/ ALTER TABLE "TABLE_A" ADD CONSTRAINT "PK_TABLE_A" PRIMARY KEY ("ID"); /******************************************************************************/ ALTER TABLE "TABLE_B" ADD CONSTRAINT "FK_TABLE_B_1" FOREIGN KEY ("TABLE_A_ID") REFERENCES "TABLE_A" ("ID") ON DELETE CASCADE; => Can't delete record with cascade foreign key, but it worked in firebird 2.5.2 when try to delete get error test DDL: /******************************************************************************/ SET SQL DIALECT 3; SET NAMES WIN1251; CREATE DATABASE 'TEST.FDB ' /******************************************************************************/ CREATE TABLE "TABLE_A" ( CREATE TABLE "TABLE_B" ( INSERT INTO "TABLE_A" ("ID", "SOME_DATA") VALUES (1, 10); COMMIT WORK; INSERT INTO "TABLE_B" ("ID", "TABLE_A_ID", "SOME_DATA", "PARENT_ID") VALUES (1, 1, 555, NULL); COMMIT WORK; /******************************************************************************/ ALTER TABLE "TABLE_A" ADD CONSTRAINT "PK_TABLE_A" PRIMARY KEY ("ID"); /******************************************************************************/ ALTER TABLE "TABLE_B" ADD CONSTRAINT "FK_TABLE_B_1" FOREIGN KEY ("TABLE_A_ID") REFERENCES "TABLE_A" ("ID") ON DELETE CASCADE; |
Commented by: @hvlad It is about self-referenced FK, i believe |
Modified by: @hvladassignee: Vlad Khorsun [ hvlad ] |
Modified by: @hvladFix Version: 3.0.1 [ 10730 ] Fix Version: 4.0 Alpha 1 [ 10731 ] summary: do not work cascade deleting => Cascade deletion in self-referencing table could raise "no current record for fetch operation" error |
Modified by: @pavel-zotovstatus: Resolved [ 5 ] => Resolved [ 5 ] QA Status: No test => Done successfully |
Modified by: @pavel-zotovstatus: Resolved [ 5 ] => Closed [ 6 ] |
Submitted by: Koltcov Viktor (koltcov)
Votes: 1
Can't delete record with cascade foreign key, but it worked in firebird 2.5.2
when try to delete
DELETE FROM TABLE_A WHERE (ID = 1)
get error
The cursor identified in the UPDATE or DELETE statement is not positioned on a row.
no current record for fetch operation.
At trigger 'CHECK_1'.
test DDL:
/******************************************************************************/
/*** Generated by IBExpert 2016.6.22.1 01.08.2016 9:58:18 ***/
/******************************************************************************/
SET SQL DIALECT 3;
SET NAMES WIN1251;
CREATE DATABASE 'TEST.FDB '
USER 'SYSDBA' PASSWORD 'masterkey'
PAGE_SIZE 16384
DEFAULT CHARACTER SET WIN1251 COLLATION WIN1251;
/******************************************************************************/
/*** Tables ***/
/******************************************************************************/
CREATE TABLE "TABLE_A" (
"ID" INTEGER NOT NULL,
"SOME_DATA" INTEGER
);
CREATE TABLE "TABLE_B" (
"ID" INTEGER NOT NULL,
"TABLE_A_ID" INTEGER,
"SOME_DATA" INTEGER,
"PARENT_ID" INTEGER
);
INSERT INTO "TABLE_A" ("ID", "SOME_DATA") VALUES (1, 10);
COMMIT WORK;
INSERT INTO "TABLE_B" ("ID", "TABLE_A_ID", "SOME_DATA", "PARENT_ID") VALUES (1, 1, 555, NULL);
INSERT INTO "TABLE_B" ("ID", "TABLE_A_ID", "SOME_DATA", "PARENT_ID") VALUES (2, 1, 222, 1);
COMMIT WORK;
/******************************************************************************/
/*** Primary keys ***/
/******************************************************************************/
ALTER TABLE "TABLE_A" ADD CONSTRAINT "PK_TABLE_A" PRIMARY KEY ("ID");
ALTER TABLE "TABLE_B" ADD CONSTRAINT "PK_TABLE_B" PRIMARY KEY ("ID");
/******************************************************************************/
/*** Foreign keys ***/
/******************************************************************************/
ALTER TABLE "TABLE_B" ADD CONSTRAINT "FK_TABLE_B_1" FOREIGN KEY ("TABLE_A_ID") REFERENCES "TABLE_A" ("ID") ON DELETE CASCADE;
ALTER TABLE "TABLE_B" ADD CONSTRAINT "FK_TABLE_B_2" FOREIGN KEY ("PARENT_ID") REFERENCES "TABLE_B" ("ID") ON DELETE CASCADE;
Commits: d5ec668 6a3d9d0
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