diff --git a/db_deploy.sql b/db_deploy.sql
index 18de438..5e3da01 100644
--- a/db_deploy.sql
+++ b/db_deploy.sql
@@ -31,21 +31,25 @@ COMMENT ON COLUMN evt.acct.prop IS 'properties';
 
 ------------------------fiscal periods------------------------
 CREATE TABLE evt.fspr (
-    id ltree
+    id ltree PRIMARY KEY
     ,dur tstzrange
 );
 
 COMMENT ON COLUMN evt.fspr.id IS 'fiscal period';
 COMMENT ON COLUMN evt.fspr.dur IS 'duration of period as timestamp range';
-
 CREATE INDEX id_gist ON evt.fspr USING GIST (id);
 
+
 --------------------------relational ledger------------------------------------------
 
 CREATE TABLE evt.gl (
     id INT GENERATED ALWAYS AS IDENTITY PRIMARY KEY
     ,bprid INT REFERENCES evt.bpr (id)
     ,acct text REFERENCES evt.acct (acct)
+    ,pstmp timestamptz DEFAULT CURRENT_TIMESTAMP
+    --populates by trigger join to evt.fspr
+    ,tstmp timestamptz
+    ,fspr ltree REFERENCES evt.fspr (id)
     ,amount numeric (12,2)
     ,glline INT
     ,bprkeys JSONB
@@ -53,6 +57,9 @@ CREATE TABLE evt.gl (
 COMMENT ON COLUMN evt.gl.id IS 'gl id';
 COMMENT ON COLUMN evt.gl.bprid IS 'id of initial basic pecuniary record';
 COMMENT ON COLUMN evt.gl.acct IS 'account code';
+COMMENT ON COLUMN evt.gl.pstmp IS 'post time stamp';
+COMMENT ON COLUMN evt.gl.tstmp IS 'transaction time stamp';
+COMMENT ON COLUMN evt.gl.fspr IS 'fiscal period';
 COMMENT ON COLUMN evt.gl.amount IS 'amount';
 COMMENT ON COLUMN evt.gl.glline IS 'gl line number';
 COMMENT ON COLUMN evt.gl.bprkeys IS 'extract from initial basic pecuniary record';
diff --git a/schema/tables/fspr.sql b/schema/tables/fspr.sql
index 25238fe..1fa789e 100644
--- a/schema/tables/fspr.sql
+++ b/schema/tables/fspr.sql
@@ -1,10 +1,9 @@
 ------------------------fiscal periods------------------------
 CREATE TABLE evt.fspr (
-    id ltree
+    id ltree PRIMARY KEY
     ,dur tstzrange
-)
+);
 
 COMMENT ON COLUMN evt.fspr.id IS 'fiscal period';
 COMMENT ON COLUMN evt.fspr.dur IS 'duration of period as timestamp range';
-
 CREATE INDEX id_gist ON evt.fspr USING GIST (id);
diff --git a/schema/tables/gl.sql b/schema/tables/gl.sql
index 2a055aa..da422f1 100644
--- a/schema/tables/gl.sql
+++ b/schema/tables/gl.sql
@@ -7,7 +7,7 @@ CREATE TABLE evt.gl (
     ,pstmp timestamptz DEFAULT CURRENT_TIMESTAMP
     --populates by trigger join to evt.fspr
     ,tstmp timestamptz
-    ,fspr ltree REFERENCES evt.fspr (id);
+    ,fspr ltree REFERENCES evt.fspr (id)
     ,amount numeric (12,2)
     ,glline INT
     ,bprkeys JSONB