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PostgreSQL error code

PostgreSQL error HV00L

HV00L is the SQLSTATE PostgreSQL reports for fdw unable to create execution, in class HV, Foreign Data Wrapper Error (SQL/MED).

SQLSTATEHV00L
Condition namefdw_unable_to_create_execution
ClassHV — Foreign Data Wrapper Error (SQL/MED)

Source: PostgreSQL documentation, Appendix A