The operation failed because the targeted object is not in the required state for the requested command.
object_not_in_prerequisite_state appears when a PostgreSQL object (constraint, index, view, etc.) is in the wrong state for the command you issued. Verify the object is DEFERRABLE, outside a transaction block, or fully initialized, then rerun the statement.
object_not_in_prerequisite_state
PostgreSQL raises SQLSTATE 55000 when a command targets an object that is not ready for that operation. The database blocks the statement to protect data consistency.
The message often appears with extra context, such as "constraint is not deferrable" or "cannot create index concurrently within a transaction." Different commands funnel into the same state error class.
Most cases involve prerequisites that the object or session must satisfy.
Common triggers include deferral settings on constraints, transaction scope limits for concurrent operations, and unfinished replication or index builds.
Because 55000 is generic, the attached detail and hint lines show the exact object and command that failed.
First, read the DETAIL line to identify which prerequisite failed. Then adjust the object or session to meet that requirement.
Typical fixes include making a constraint DEFERRABLE, moving a CONCURRENTLY clause outside a transaction block, or refreshing a materialized view without the CONCURRENTLY keyword.
After correcting the prerequisite, rerun the statement. The command completes once PostgreSQL detects the proper object state.
SET CONSTRAINTS DEFERRED fails on NOT DEFERRABLE constraints. Mark the constraint DEFERRABLE or drop and recreate it correctly.
CREATE INDEX CONCURRENTLY fails inside a transaction.
Run it as a standalone command.
REFRESH MATERIALIZED VIEW CONCURRENTLY fails within a transaction block. Execute it at the top level or omit CONCURRENTLY.
Define constraints as DEFERRABLE when you intend to defer them. Keep concurrent index and materialized view operations outside explicit BEGIN blocks.
Monitor long-running replication and index builds to avoid conflicting commands.
Galaxy users benefit from inline linting that warns when a statement will violate these rules, reducing run-time errors.
55006 object_in_use indicates the object is locked by another session. 25P02 in_failed_sql_transaction appears after a prior error inside the same transaction. 42P01 undefined_table means the referenced table is missing. Each requires different fixes, but they commonly appear together in migration scripts.
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No. The error protects data integrity by blocking commands until prerequisites are met.
No. You must change the object or session context so the prerequisite is satisfied.
Read the DETAIL or HINT lines in the error output. PostgreSQL specifies the missing condition.
Yes. Galaxy highlights CONCURRENTLY commands inside transactions and suggests making constraints DEFERRABLE, preventing runtime failures.
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