org.jooq.meta.postgres.PostgresTableValuedFunction Maven / Gradle / Ivy
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package org.jooq.meta.postgres;
import static org.jooq.impl.DSL.coalesce;
import static org.jooq.impl.DSL.field;
import static org.jooq.impl.DSL.inline;
import static org.jooq.impl.DSL.name;
import static org.jooq.impl.DSL.partitionBy;
import static org.jooq.impl.DSL.row;
import static org.jooq.impl.DSL.rowNumber;
import static org.jooq.impl.DSL.select;
import static org.jooq.meta.postgres.information_schema.Tables.COLUMNS;
import static org.jooq.meta.postgres.information_schema.Tables.PARAMETERS;
import static org.jooq.meta.postgres.information_schema.Tables.ROUTINES;
import static org.jooq.meta.postgres.pg_catalog.Tables.PG_NAMESPACE;
import static org.jooq.meta.postgres.pg_catalog.Tables.PG_PROC;
import static org.jooq.meta.postgres.pg_catalog.Tables.PG_TYPE;
import static org.jooq.tools.StringUtils.defaultString;
import static org.jooq.util.postgres.PostgresDSL.oid;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.jooq.Record;
import org.jooq.TableOptions.TableType;
import org.jooq.meta.AbstractTableDefinition;
import org.jooq.meta.ColumnDefinition;
import org.jooq.meta.DataTypeDefinition;
import org.jooq.meta.DefaultColumnDefinition;
import org.jooq.meta.DefaultDataTypeDefinition;
import org.jooq.meta.ParameterDefinition;
import org.jooq.meta.SchemaDefinition;
import org.jooq.meta.postgres.information_schema.tables.Columns;
import org.jooq.meta.postgres.information_schema.tables.Parameters;
import org.jooq.meta.postgres.information_schema.tables.Routines;
import org.jooq.meta.postgres.pg_catalog.tables.PgNamespace;
import org.jooq.meta.postgres.pg_catalog.tables.PgProc;
import org.jooq.meta.postgres.pg_catalog.tables.PgType;
/**
* @author Lukas Eder
*/
public class PostgresTableValuedFunction extends AbstractTableDefinition {
private final PostgresRoutineDefinition routine;
private final String specificName;
public PostgresTableValuedFunction(SchemaDefinition schema, String name, String specificName, String comment) {
this(schema, name, specificName, comment, null);
}
public PostgresTableValuedFunction(SchemaDefinition schema, String name, String specificName, String comment, String source) {
super(schema, name, comment, TableType.FUNCTION, source);
this.routine = new PostgresRoutineDefinition(schema.getDatabase(), schema.getInputName(), name, specificName);
this.specificName = specificName;
}
@Override
public List getElements0() throws SQLException {
List result = new ArrayList<>();
Routines r = ROUTINES;
Parameters p = PARAMETERS;
PgNamespace pg_n = PG_NAMESPACE;
PgProc pg_p = PG_PROC;
Columns c = COLUMNS;
PgType pg_t = PG_TYPE;
for (Record record : create()
// [#3375] The first subselect is expected to return only those
// table-valued functions that return a TABLE type, as that TABLE
// type is reported implicitly via PARAMETERS.PARAMETER_MODE = 'OUT'
.select(
p.PARAMETER_NAME,
rowNumber().over(partitionBy(p.SPECIFIC_NAME).orderBy(p.ORDINAL_POSITION)).as(p.ORDINAL_POSITION),
p.DATA_TYPE,
p.CHARACTER_MAXIMUM_LENGTH,
p.NUMERIC_PRECISION,
p.NUMERIC_SCALE,
inline("true").as(c.IS_NULLABLE),
(((PostgresDatabase) getDatabase()).is94()
? PARAMETERS.PARAMETER_DEFAULT
: inline((String) null)).as(c.COLUMN_DEFAULT),
p.UDT_SCHEMA,
p.UDT_NAME
)
.from(r)
.join(p).on(row(r.SPECIFIC_CATALOG, r.SPECIFIC_SCHEMA, r.SPECIFIC_NAME)
.eq(p.SPECIFIC_CATALOG, p.SPECIFIC_SCHEMA, p.SPECIFIC_NAME))
.join(pg_n).on(r.SPECIFIC_SCHEMA.eq(pg_n.NSPNAME))
.join(pg_p).on(pg_p.PRONAMESPACE.eq(oid(pg_n)))
.and(pg_p.PRONAME.eq(r.ROUTINE_NAME))
.where(r.SPECIFIC_NAME.eq(specificName))
.and(p.PARAMETER_MODE.ne("IN"))
.and(pg_p.PRORETSET)
.unionAll(
// [#3376] The second subselect is expected to return only those
// table-valued functions that return a SETOF [ table type ], as that
// table reference is reported via a TYPE_UDT that matches a table
// from INFORMATION_SCHEMA.TABLES
select(
coalesce(c.COLUMN_NAME , getName() ).as(c.COLUMN_NAME),
coalesce(c.ORDINAL_POSITION , inline(1) ).as(c.ORDINAL_POSITION),
coalesce(c.DATA_TYPE , r.DATA_TYPE ).as(c.DATA_TYPE),
coalesce(c.CHARACTER_MAXIMUM_LENGTH , r.CHARACTER_MAXIMUM_LENGTH ).as(c.CHARACTER_MAXIMUM_LENGTH),
coalesce(c.NUMERIC_PRECISION , r.NUMERIC_PRECISION ).as(c.NUMERIC_PRECISION),
coalesce(c.NUMERIC_SCALE , r.NUMERIC_SCALE ).as(c.NUMERIC_SCALE),
coalesce(c.IS_NULLABLE , "true" ).as(c.IS_NULLABLE),
coalesce(c.COLUMN_DEFAULT , inline((String) null) ).as(c.COLUMN_DEFAULT),
coalesce(c.UDT_SCHEMA , inline((String) null) ).as(c.UDT_SCHEMA),
coalesce(c.UDT_NAME , r.UDT_NAME ,
field(select(pg_t.TYPNAME).from(pg_t).where(oid(pg_t).eq(pg_p.PRORETTYPE)))
).as(c.UDT_NAME)
)
.from(r)
// [#4269] SETOF [ scalar type ] routines don't have any corresponding
// entries in INFORMATION_SCHEMA.COLUMNS. Their single result table
// column type is contained in ROUTINES
.leftOuterJoin(c)
.on(row(r.TYPE_UDT_CATALOG, r.TYPE_UDT_SCHEMA, r.TYPE_UDT_NAME)
.eq(c.TABLE_CATALOG, c.TABLE_SCHEMA, c.TABLE_NAME))
.join(pg_n).on(r.SPECIFIC_SCHEMA.eq(pg_n.NSPNAME))
.join(pg_p).on(pg_p.PRONAMESPACE.eq(oid(pg_n)))
.and(pg_p.PRONAME.concat("_").concat(oid(pg_p)).eq(r.SPECIFIC_NAME))
.where(r.SPECIFIC_NAME.eq(specificName))
// [#4269] Exclude TABLE [ some type ] routines from the first UNION ALL subselect
// Can this be done more elegantly?
.and( row(r.SPECIFIC_CATALOG, r.SPECIFIC_SCHEMA, r.SPECIFIC_NAME)
.notIn(select(p.SPECIFIC_CATALOG, p.SPECIFIC_SCHEMA, p.SPECIFIC_NAME).from(p).where(p.PARAMETER_MODE.eq("OUT"))))
.and(pg_p.PRORETSET))
// Either subselect can be ordered by their ORDINAL_POSITION
.orderBy(2)
) {
SchemaDefinition typeSchema = null;
String schemaName = record.get(p.UDT_SCHEMA);
if (schemaName != null)
typeSchema = getDatabase().getSchema(schemaName);
DataTypeDefinition type = new DefaultDataTypeDefinition(
getDatabase(),
typeSchema,
record.get(p.DATA_TYPE),
record.get(p.CHARACTER_MAXIMUM_LENGTH),
record.get(p.NUMERIC_PRECISION),
record.get(p.NUMERIC_SCALE),
record.get(c.IS_NULLABLE, boolean.class),
record.get(c.COLUMN_DEFAULT),
name(
record.get(p.UDT_SCHEMA),
record.get(p.UDT_NAME)
)
);
ColumnDefinition column = new DefaultColumnDefinition(
getDatabase().getTable(getSchema(), getName()),
record.get(p.PARAMETER_NAME),
record.get(p.ORDINAL_POSITION, int.class),
type,
defaultString(record.get(c.COLUMN_DEFAULT)).startsWith("nextval"),
null
);
result.add(column);
}
return result;
}
@Override
protected List getParameters0() {
return routine.getInParameters();
}
}
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