LightDB provides robust support for array data types as column types, function arguments and criteria in where clauses. There are several ways to create arrays with ltjdbc.
The java.sql.Connection.createArrayOf(String,
Object[]) can be used to create an java.sql.Array
from Object[]
instances (Note: this includes both primitive
and object multi-dimensional arrays). A similar method
org.postgresql.PGConnection.createArrayOf(String, Object)
provides support for primitive array types. The
java.sql.Array
object returned from these methods can be
used in other methods, such as PreparedStatement.setArray(int,
Array).
The following types of arrays support binary representation in
requests and can be used in
PreparedStatement.setObject
:
Java Type | Supported binary LightDB Types | Default LightDB Type |
---|---|---|
short[] , Short[] |
int2[] |
int2[] |
int[] , Integer[] |
int4[] |
int4[] |
long[] , Long[] |
int8[] |
int8[] |
float[] , Float[] |
float4[] |
float4[] |
double[] , Double[] |
float8[] |
float8[] |
boolean[] , Boolean[] |
bool[] |
bool[] |
String[] |
varchar[] , text[] |
varchar[] |
byte[][] |
bytea[] |
bytea[] |