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Hi all, I have a problem with INSERT ... ON CONFLICT sql command. Reading 9.6 documentation i see that ON CONFLICT command will accpets only index_column_name or index_expression (unique composite/primary indexes are valid too). So, my problem is that i can't create any type of upsert-valid index . Let me explain. I have a table T1 containing F1, F2, F3, F4 fields. I can insert same records in T1, MAX TWICE. I can have records like (A,B,C,D),(B,A,D,C), etc.. and (A,B,C,D)
AGAIN. Any other next insert of (A,B,C,D) is not allowed (actually
it is avoided by a complex-and-slow-performance select count in
before insert/update trigger). In this case i can't create any type of primary/unique index, like a composite F1,F2, F3, F4 index. (correct me if i am wrong please). So, how to use UPSERT in this case? Agharta |
