24841644892

Committed 23 Apr 2026 02:44PM UTC coverage: 85.279% (-4.0%) from 89.306%

Build # 24841644892

Build Type

push

gh-ci

Committed by

web-flow

Commit Message

feat: v1.11.0 PostgreSQL compatibility and SQL feature expansion (#2090)

* Add structured audit logging with immutable audit trail

Introduces a new --audit-log flag that records all gRPC operations as
structured JSON events in immudb's tamper-proof KV store. Events are
stored under the audit: key prefix in systemdb, queryable via Scan and
verifiable via VerifiableGet. An async buffered writer ensures minimal
latency impact. Configurable event filtering (all/write/admin) via
--audit-log-events flag.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Add PostgreSQL ORM compatibility layer and verification functions

Extend the pgsql wire protocol with immudb verification functions
(immudb_state, immudb_verify_row, immudb_verify_tx, immudb_history,
immudb_tx) accessible via standard SQL SELECT statements.

Add pg_catalog resolvers (pg_attribute, pg_index, pg_constraint,
pg_type, pg_settings, pg_description) and information_schema
resolvers (tables, columns, schemata, key_column_usage) to support
ORM introspection from Django, SQLAlchemy, GORM, and ActiveRecord.

Add PostgreSQL compatibility functions: current_database,
current_schema, current_user, format_type, pg_encoding_to_char,
pg_get_expr, pg_get_constraintdef, obj_description, col_description,
has_table_privilege, has_schema_privilege, and others.

Add SHOW statement emulation for common ORM config queries and
schema-qualified name stripping for information_schema and public
schema references.

* Implement EXISTS and IN subquery support in SQL engine

Replace the previously stubbed ExistsBoolExp and InSubQueryExp
implementations with working non-correlated subquery execution.

EXISTS subqueries resolve the inner SELECT and check if any rows
are returned. IN subqueries resolve the inner SELECT, iterate the
result set, and compare each value against the outer expression.
Both support NOT variants (NOT EXISTS, NOT IN).

Correlated subqueries (referencing outer query columns) ar... (continued)

Coverage Stats

7254 of 10471 new or added lines in 124 files covered. (69.28%)

115 existing lines in 18 files now uncovered.

44599 of 52298 relevant lines covered (85.28%)

127676.6 hits per line

Source File
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95.35

/pkg/pgsql/sys/pg_tables.go

/*
Copyright 2026 Codenotary Inc. All rights reserved.

SPDX-License-Identifier: BUSL-1.1
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    https://mariadb.com/bsl11/

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package sys

import (
        "context"

        "github.com/codenotary/immudb/embedded/sql"
)

// pg_tables: a PG compatibility view over pg_class that XORM / GORM /
// SQLAlchemy / Hibernate / psql `\dt` read to enumerate base tables.
//
// Column shape and values match the legacy handlePgTablesQuery canned
// handler in pgadmin_compat.go so no ORM that used to work regresses.
// The key columns clients filter on are schemaname (always 'public'
// in immudb's single-schema model) and tablename (for existence
// probes).
//
// hasindexes reflects whether the table has any non-PK index —
// matching what PG reports. Other booleans are always false: immudb
// has no rules / triggers / row-level security.
func init() {
        sql.RegisterSystemTable(&sql.SystemTableDef{
                Name: "pg_tables",
                Columns: []sql.SystemTableColumn{
                        {Name: "schemaname", Type: sql.VarcharType, MaxLen: 64},
                        {Name: "tablename", Type: sql.VarcharType, MaxLen: 128},
                        {Name: "tableowner", Type: sql.VarcharType, MaxLen: 64},
                        {Name: "tablespace", Type: sql.VarcharType, MaxLen: 64},
                        {Name: "hasindexes", Type: sql.BooleanType},
                        {Name: "hasrules", Type: sql.BooleanType},
                        {Name: "hastriggers", Type: sql.BooleanType},
                        {Name: "rowsecurity", Type: sql.BooleanType},
                        // Synthesised PK — natural key is (schemaname, tablename)
                        // but the registry wants a single-column PK.
                        {Name: "table_oid", Type: sql.IntegerType},
                },
                PKColumn: "table_oid",
                Scan: func(ctx context.Context, tx *sql.SQLTx) ([]*sql.Row, error) {
                        cat := tx.Catalog()
                        if cat == nil {
                                return nil, nil
                        }
                        tables := cat.GetTables()
                        rows := make([]*sql.Row, 0, len(tables))
                        for _, t := range tables {
                                // Real PG pg_tables.hasindexes counts any index; immudb
                                // creates the PK index implicitly on every table so
                                // len(idxs) > 0 is always true for base tables. Leave
                                // the literal check in place in case some future table
                                // shape skips the implicit PK.
                                rows = append(rows, &sql.Row{ValuesByPosition: []sql.TypedValue{
                                        sql.NewVarchar("public"),
                                        sql.NewVarchar(t.Name()),
                                        sql.NewVarchar("immudb"),
                                        sql.NewNull(sql.VarcharType),
                                        sql.NewBool(len(t.GetIndexes()) > 0),
                                        sql.NewBool(false),
                                        sql.NewBool(false),
                                        sql.NewBool(false),
                                        sql.NewInteger(relOID("public", t.Name())),
                                }})
                        }
                        return rows, nil
                },
        })
}

1	/*
2	Copyright 2026 Codenotary Inc. All rights reserved.
3
4	SPDX-License-Identifier: BUSL-1.1
5	you may not use this file except in compliance with the License.
6	You may obtain a copy of the License at
7
8	https://mariadb.com/bsl11/
9
10	Unless required by applicable law or agreed to in writing, software
11	distributed under the License is distributed on an "AS IS" BASIS,
12	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	See the License for the specific language governing permissions and
14	limitations under the License.
15	*/
16
17	package sys
18
19	import (
20	"context"
21
22	"github.com/codenotary/immudb/embedded/sql"
23	)
24
25	// pg_tables: a PG compatibility view over pg_class that XORM / GORM /
26	// SQLAlchemy / Hibernate / psql `\dt` read to enumerate base tables.
27	//
28	// Column shape and values match the legacy handlePgTablesQuery canned
29	// handler in pgadmin_compat.go so no ORM that used to work regresses.
30	// The key columns clients filter on are schemaname (always 'public'
31	// in immudb's single-schema model) and tablename (for existence
32	// probes).
33	//
34	// hasindexes reflects whether the table has any non-PK index —
35	// matching what PG reports. Other booleans are always false: immudb
36	// has no rules / triggers / row-level security.
37	func init() {	13✔
38	sql.RegisterSystemTable(&sql.SystemTableDef{	13✔
39	Name: "pg_tables",	13✔
40	Columns: []sql.SystemTableColumn{	13✔
41	{Name: "schemaname", Type: sql.VarcharType, MaxLen: 64},	13✔
42	{Name: "tablename", Type: sql.VarcharType, MaxLen: 128},	13✔
43	{Name: "tableowner", Type: sql.VarcharType, MaxLen: 64},	13✔
44	{Name: "tablespace", Type: sql.VarcharType, MaxLen: 64},	13✔
45	{Name: "hasindexes", Type: sql.BooleanType},	13✔
46	{Name: "hasrules", Type: sql.BooleanType},	13✔
47	{Name: "hastriggers", Type: sql.BooleanType},	13✔
48	{Name: "rowsecurity", Type: sql.BooleanType},	13✔
49	// Synthesised PK — natural key is (schemaname, tablename)	13✔
50	// but the registry wants a single-column PK.	13✔
51	{Name: "table_oid", Type: sql.IntegerType},	13✔
52	},	13✔
53	PKColumn: "table_oid",	13✔
54	Scan: func(ctx context.Context, tx sql.SQLTx) ([]sql.Row, error) {	21✔
55	cat := tx.Catalog()	8✔
56	if cat == nil {	8✔
NEW 57	return nil, nil	×
NEW 58	}	×
59	tables := cat.GetTables()	8✔
60	rows := make([]*sql.Row, 0, len(tables))	8✔
61	for _, t := range tables {	20✔
62	// Real PG pg_tables.hasindexes counts any index; immudb	12✔
63	// creates the PK index implicitly on every table so	12✔
64	// len(idxs) > 0 is always true for base tables. Leave	12✔
65	// the literal check in place in case some future table	12✔
66	// shape skips the implicit PK.	12✔
67	rows = append(rows, &sql.Row{ValuesByPosition: []sql.TypedValue{	12✔
68	sql.NewVarchar("public"),	12✔
69	sql.NewVarchar(t.Name()),	12✔
70	sql.NewVarchar("immudb"),	12✔
71	sql.NewNull(sql.VarcharType),	12✔
72	sql.NewBool(len(t.GetIndexes()) > 0),	12✔
73	sql.NewBool(false),	12✔
74	sql.NewBool(false),	12✔
75	sql.NewBool(false),	12✔
76	sql.NewInteger(relOID("public", t.Name())),	12✔
77	}})	12✔
78	}	12✔
79	return rows, nil	8✔
80	},
81	})
82	}

codenotary / immudb / 24841644892

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