From c09ddd9c8cddbe10ec402640c7c2bcc8f17de1cc Mon Sep 17 00:00:00 2001
From: Knut Wannheden <knut.wannheden@gmail.com>
Date: Wed, 27 Nov 2019 16:49:17 +0100
Subject: [PATCH] [jOOQ/jOOQ#9442] Sequence flag generation for PostgreSQL

Note: Cache information is not available from PostgreSQL's
`INFORMATION_SCHEMA.SEQUENCES`.
---
 .../java/org/jooq/meta/h2/H2Database.java     |  3 +--
 .../jooq/meta/postgres/PostgresDatabase.java  | 26 +++++++++++++++++--
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/jOOQ-meta/src/main/java/org/jooq/meta/h2/H2Database.java b/jOOQ-meta/src/main/java/org/jooq/meta/h2/H2Database.java
index f12cada432..b58cf1cd96 100644
--- a/jOOQ-meta/src/main/java/org/jooq/meta/h2/H2Database.java
+++ b/jOOQ-meta/src/main/java/org/jooq/meta/h2/H2Database.java
@@ -54,7 +54,6 @@ import static org.jooq.meta.h2.information_schema.tables.Tables.TABLES;
 import static org.jooq.meta.h2.information_schema.tables.TypeInfo.TYPE_INFO;
 
 import java.io.StringReader;
-import java.math.BigInteger;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
@@ -112,7 +111,7 @@ import org.jooq.util.h2.H2DataType;
  */
 public class H2Database extends AbstractDatabase {
 
-    private static final BigInteger DEFAULT_SEQUENCE_MAXVALUE = new BigInteger("9223372036854775807");
+    private static final long DEFAULT_SEQUENCE_MAXVALUE = Long.MAX_VALUE;
 
     @Override
     protected DSLContext create0() {
diff --git a/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java b/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java
index 3f652ccbca..8d1188ec80 100644
--- a/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java
+++ b/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java
@@ -49,12 +49,17 @@ import static org.jooq.impl.DSL.max;
 import static org.jooq.impl.DSL.name;
 import static org.jooq.impl.DSL.noCondition;
 import static org.jooq.impl.DSL.not;
+import static org.jooq.impl.DSL.nullif;
 import static org.jooq.impl.DSL.one;
 import static org.jooq.impl.DSL.partitionBy;
+import static org.jooq.impl.DSL.power;
 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.impl.DSL.when;
+import static org.jooq.impl.SQLDataType.BIGINT;
+import static org.jooq.impl.SQLDataType.BOOLEAN;
+import static org.jooq.impl.SQLDataType.NUMERIC;
 import static org.jooq.impl.SQLDataType.VARCHAR;
 import static org.jooq.meta.postgres.information_schema.Tables.ATTRIBUTES;
 import static org.jooq.meta.postgres.information_schema.Tables.CHECK_CONSTRAINTS;
@@ -552,7 +557,13 @@ public class PostgresDatabase extends AbstractDatabase {
                     SEQUENCES.SEQUENCE_NAME,
                     SEQUENCES.DATA_TYPE,
                     SEQUENCES.NUMERIC_PRECISION,
-                    SEQUENCES.NUMERIC_SCALE)
+                    SEQUENCES.NUMERIC_SCALE,
+                    SEQUENCES.START_VALUE.cast(BIGINT).as(SEQUENCES.START_VALUE),
+                    SEQUENCES.INCREMENT.cast(BIGINT).as(SEQUENCES.INCREMENT),
+                    SEQUENCES.MINIMUM_VALUE.cast(BIGINT).as(SEQUENCES.MINIMUM_VALUE),
+                    nullif(SEQUENCES.MAXIMUM_VALUE.cast(NUMERIC),
+                        power(inline(2, NUMERIC), SEQUENCES.NUMERIC_PRECISION.minus(1)).minus(1)).as(SEQUENCES.MAXIMUM_VALUE),
+                    SEQUENCES.CYCLE_OPTION.cast(BOOLEAN).as(SEQUENCES.CYCLE_OPTION))
                 .from(SEQUENCES)
                 .where(SEQUENCES.SEQUENCE_SCHEMA.in(getInputSchemata()))
                 .orderBy(
@@ -572,7 +583,18 @@ public class PostgresDatabase extends AbstractDatabase {
                 (String) null
             );
 
-            result.add(new DefaultSequenceDefinition(schema, record.get(SEQUENCES.SEQUENCE_NAME), type));
+            result.add(new DefaultSequenceDefinition(
+                schema,
+                record.get(SEQUENCES.SEQUENCE_NAME),
+                type,
+                null,
+                record.get(SEQUENCES.START_VALUE, Long.class),
+                record.get(SEQUENCES.INCREMENT, Long.class),
+                record.get(SEQUENCES.MINIMUM_VALUE, Long.class),
+                record.get(SEQUENCES.MAXIMUM_VALUE, Long.class),
+                record.get(SEQUENCES.CYCLE_OPTION, Boolean.class),
+                null
+                ));
         }
 
         return result;