BinOpCounter creates a telemetry counter for a scalar binary operator.

BuiltinCounter creates a telemetry counter for a built-in function.

CastOpCounter creates a telemetry counter for a scalar cast operator.

CmpOpCounter creates a telemetry counter for a scalar comparison operator.

OptNodeCounter should be incremented every time a node of the given type is encountered at the end of the query optimization (i.e.

RecordError processes a SQL error.

ReportJoinReorderLimit is to be called whenever the reorder joins session variable is set.

SerialColumnNormalizationCounter is to be incremented every time a SERIAL type is processed in a column definition.

UnaryOpCounter creates a telemetry counter for a scalar unary operator.

UnimplementedClientStatusParameterCounter is to be incremented every time a client attempts to configure a status parameter that's not supported upon session initialization.

UnimplementedSessionVarValueCounter is to be incremented every time a client attempts to set a compatitibility session var to an unsupported value.

ArrayCastCounter is to be incremented when type checking all casts that involve arrays.

ArrayConstructorCounter is to be incremented upon type checking of ARRAY[...] expressions/.

ArrayFlattenCounter is to be incremented upon type checking of ARRAY(...) expressions.

ArraySubscriptCounter is to be incremented upon type checking an array subscript expression x[...].

BinaryDecimalInfinityCounter is to be incremented every time a client requests the binary encoding for a decimal infinity, which is not well defined in the pg protocol (#32489).

CancelRequestCounter is to be incremented every time a pgwire-level cancel request is received from a client.

CorrelatedSubqueryUseCounter is to be incremented every time a correlated subquery has been processed during planning.

CteUseCounter is to be incremented every time a CTE (WITH ...) is planned without error in a query.

DefaultIntSize4Counter is to be incremented every time a client change the default_int_size variable to its non-default value 4.

ForceSavepointRestartCounter is to be incremented every time a client customizes the session variable force_savepoint_restart to a non-empty string.

HashJoinHintUseCounter is to be incremented whenever a query specifies a hash join via a query hint.

IfErrCounter is to be incremented upon type checking an IFERROR(...) expression or analogous.

LargeLShiftArgumentCounter is to be incremented upon evaluating a scalar expressions a << b when b is larger than 64 or negative.

LargeRShiftArgumentCounter is to be incremented upon evaluating a scalar expressions a >> b when b is larger than 64 or negative.

LookupJoinHintUseCounter is to be incremented whenever a query specifies a lookup join via a query hint.

MergeJoinHintUseCounter is to be incremented whenever a query specifies a merge join via a query hint.

SubqueryUseCounter is to be incremented every time a subquery is planned.

TurnAutoStatsOffUseCounter is to be incremented whenever automatic stats collection is explicitly disabled.

TurnAutoStatsOnUseCounter is to be incremented whenever automatic stats collection is explicitly enabled.