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Re: error 293 Inconsistent trigger state in TC block
Posted by: Mikael Ronström
Date: March 16, 2018 12:52PM

As it turns out it seems that my initial thought on that the
LongMessageBuffer is too short is wrong. After reading the
commit comments around the ZINCONSISTENT_TRIGGER_STATE (293) I realised
that the resource shortage comes from the configuration variable
TransactionBufferMemory that is used to store the before value and
after value of triggers.

For most triggers this buffer's default size of 1 MByte is quite
sufficient. But foreign key triggers with NO ACTION have a check
that is deferred until commit time. Thus in this case this resource
might be exhausted in conjunction with large transactions.

So the updated advice is to increase the TransactionBufferMemory
configuration parameter.

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Re: error 293 Inconsistent trigger state in TC block
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