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Version: 1.2 (Preview)

PostgreSQL (ADBC) → Parquet

Datatypes conversion mapping when exporting from PostgreSQL using the ADBC connector (--connectiontype adbc_pgsql) to Parquet format.

Platform availability

The ADBC FastDriver connectors (adbc_mssql, adbc_pgsql) are available on Windows x64 and Linux x64 only. They are not supported on Linux ARM64.

info

The ADBC connector does not map every type the way the standard pgsql driver does. Compare both pages before switching.

SourcePostgreSQL (adbc_pgsql)
FormatParquet
FastBCP1.1.4.0
Test StatusPARTIAL (40/41 Nullable)
Failed Types

The following datatype is not supported with this connector:

  • INTERVAL — export fails

Parquet Schema: testdatatypes_nullable

namephysical_typeconverted_typelogical_type
col_bigintINT64
col_integerINT32
col_smallintINT32INT_16IntType(bitWidth=16, isSigned=1)
col_booleanBOOLEAN
col_numericFIXED_LEN_BYTE_ARRAYDECIMALDecimalType(scale=2, precision=18)
col_realFLOAT
col_double_precisionDOUBLE
col_moneyBYTE_ARRAY
col_dateINT32DATEDateType()
col_timeINT64TimeType(isAdjustedToUTC=0, unit=MICROS)
col_timestampINT64TIMESTAMP_MICROSTimestampType(isAdjustedToUTC=0, unit=MICROS)
col_timestamptzINT64TIMESTAMP_MICROSTimestampType(isAdjustedToUTC=1, unit=MICROS)
col_charBYTE_ARRAYUTF8StringType()
col_varcharBYTE_ARRAYUTF8StringType()
col_textBYTE_ARRAYUTF8StringType()
col_byteaBYTE_ARRAY
col_uuidBYTE_ARRAYUTF8StringType()
col_jsonBYTE_ARRAYUTF8StringType()
col_jsonbBYTE_ARRAYUTF8StringType()
col_xmlBYTE_ARRAYUTF8StringType()
col_inetBYTE_ARRAYUTF8StringType()
col_cidrBYTE_ARRAYUTF8StringType()
col_macaddrBYTE_ARRAYUTF8StringType()
col_pointBYTE_ARRAY
col_lineBYTE_ARRAY
col_lsegBYTE_ARRAY
col_boxBYTE_ARRAY
col_pathBYTE_ARRAY
col_polygonBYTE_ARRAY
col_circleBYTE_ARRAY
col_int4rangeBYTE_ARRAY
col_int8rangeBYTE_ARRAY
col_numrangeBYTE_ARRAY
col_tsrangeBYTE_ARRAY
col_tstzrangeBYTE_ARRAY
col_daterangeBYTE_ARRAY
col_bitBYTE_ARRAYUTF8StringType()
col_bit_varyingBYTE_ARRAYUTF8StringType()
col_oidINT32
col_int_arrayBYTE_ARRAY
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