PostgreSQL Source and Snowflake Target

The following table identifies the recommended data-type mappings for Database Ingestion and Replication configurations with a PostgreSQL source and a Snowflake target:

PostgreSQL Source Data Type	Snowflake Target Data Type
bigint	number
bit varying(precision), 1 <= p <= 83886080	binary(size), 1 <= size <= 6291457
bit(precision), 1 <= p <= 83886080	binary(size), 1 <= size <= 6291457
boolean	boolean
box	binary(115)
character varying(size), 1 <= size <= 10485760	varchar(size), 4 <= size <= 16776004
character(size), 1 <= size <= 10485760	varchar(size), 4 <= size <= 16776004
cidr	varchar(45)
circle	binary(87)
date	date
daterange	varchar(29)
double precision	float
inet	varchar(45)
int4range	varchar(25)
int8range	varchar(43)
integer	integer
json	variant
jsonb	variant
line	binary(85)
lseg	binary(117)
macaddr	varchar(17)
macaddr8	varchar(23)
money	number(19,2)
numeric	varchar(131074)
numeric(p,s), 1 <= p <= 38, 0 <= s <= 37	number(p,s), 1 <= p <= 38, 0 <= s <= 37
numeric(p,s), 38 <= p <= 1000, 38 <= s <= 1000	varchar(size), 41 <= size <= 1003
numrange	varchar(294917)
path	binary
point	binary(57)
polygon	binary
real	float
smallint	number
time(precision) with time zone, 0 <= p <= 6	timestamp_tz(precision), 0 <= p <= 6
time(precision) without time zone, 0 <= p <= 6	time(precision), 0 <= p <= 6
timestamp(precision) with time zone, 0 <= p <= 6	timestamp_tz(precision), 0 <= p <= 6
timestamp(precision) without time zone, 0 <= p <= 6	timestamp_ntz(precision), 0 <= p <= 6
tsrange	varchar(63)
tstzrange	varchar(75)
uuid	varchar
xml	variant

Limitations

•Database ingestion and replication jobs that use any of the load types can replicate data from PostgreSQL bytea, text, xml, and other large-object columns to Snowflake targets if you select the Include LOBs option under Advanced on the Source page of the task wizard. LOB column data is truncated before being written to the target if it is greater in size than a byte limit that depends on the LOB type. For more information, see the "Include LOBs" description in Configure a PostgreSQL source.

Unsupported source data types

For initial load jobs, Database Ingestion and Replication does not support the following PostgreSQL data types:

•ABSTIME

•Array types

•NAME

•Object identifier types

•PG_LSN

•RELTIME

•Text search types:

- TSQUERY
- TSVECTOR

•User-defined types

For incremental load and initial and incremental load jobs, Database Ingestion and Replication does not support the following PostgreSQL data types, in addition to those not supported for initial load jobs:

•Spatial types

- Box
- Circle
- Line
- LSeg
- Path
- Point
- Polygon

•Unbounded varying types

Database ingestion and replication jobs either fail to deploy or propagate nulls for columns that have these data types.