add PG19 to mise config

CLAUDE.md

@@ -31,6 +31,7 @@ mise run build:release      # Release build
 mise run build:16           # Build for PostgreSQL 16
 mise run build:17           # Build for PostgreSQL 17
 mise run build:18           # Build for PostgreSQL 18
+mise run build:19           # Build for PostgreSQL 19
 mise run build:all          # Build for all PG versions
 mise run install            # Install the extension
 mise run clean              # Clean build artifacts
@@ -105,6 +106,7 @@ mise run test:isolation     # Isolation tests (race conditions)
 ## Version Compatibility
 
 Use `#if PG_VERSION_NUM >= XXXXX` for version-specific code:
+- PG 19+: Query instrumentation changes, const JumbleState, updated shared memory APIs, core ComputeConstantLengths
 - PG 18+: `execute_once` removed from ExecutorRun
 - PG 17+: Unified nesting_level, separate block timing
 - PG 15+: JIT instrumentation, temp_blk timing

mise.toml

@@ -4,7 +4,7 @@ CFLAGS = "-std=gnu17"
 VCPKG_ROOT = "{{config_root}}/third_party/vcpkg"
 
 [tools]
-postgres = ["16", "17", "18"]
+postgres = ["16", "17", "18", "19"]
 
 [tasks.configure]
 run = "cmake -B build --preset default"
@@ -120,6 +120,10 @@ description = "Build for PostgreSQL 17"
 run = "rm -rf build && cmake --preset default -DPG_CONFIG=$(mise where postgres@18)/bin/pg_config && cmake --build build"
 description = "Build for PostgreSQL 18"
 
+[tasks."build:19"]
+run = "rm -rf build && cmake --preset default -DPG_CONFIG=$(mise where postgres@19)/bin/pg_config && cmake --build build"
+description = "Build for PostgreSQL 19"
+
 [tasks."build:all"]
-depends = ["build:16", "build:17", "build:18"]
+depends = ["build:16", "build:17", "build:18", "build:19"]
 description = "Build for all PostgreSQL versions"

scripts/run-tests.sh

@@ -15,7 +15,7 @@ NC='\033[0m' # No Color
 
 usage() {
     echo "Usage: $0 <PG_VERSION|PG_PATH> [test_type] [test_filter]"
-    echo "  PG_VERSION:  PostgreSQL version (16, 17, 18) - uses mise"
+    echo "  PG_VERSION:  PostgreSQL version (16, 17, 18, 19) - uses mise"
     echo "  PG_PATH:     Path to local PostgreSQL installation"
     echo "  test_type:   regress, tap, isolation, stress, clickhouse, otel, or all (default: all)"
     echo "  test_filter: (tap only) pattern to match test files, e.g., '021' for t/*021*.pl"

src/hooks/hooks.c

@@ -384,7 +384,8 @@ static void BuildEventFromQueryDesc(QueryDesc* query_desc, PschEvent* event, int
   InitBaseEvent(event, query_start_ts, current_query_is_top_level,
                 ConvertCmdType(query_desc->operation));
   event->queryid = query_desc->plannedstmt->queryId;
-  event->rows = query_desc->estate->es_processed;
+  // Match pg_stat_statements row counts across cursor fetches.
+  event->rows = query_desc->estate->es_total_processed;
   event->cpu_user_time_us = cpu_user_us;
   event->cpu_sys_time_us = cpu_sys_us;