Add 'fiscal/' from commit '102ba84500dbd9655a0471288c3e278652593ca9'

git-subtree-dir: fiscal
git-subtree-mainline: d95165fc8f
git-subtree-split: 102ba84500

fiscal/scripts/inspect_erp_table.py

@@ -0,0 +1,22 @@
+"""Read-only: per-column stats for a table. usage: inspect_erp_table.py TABLE [regex-of-cols]"""
+import os, re, sys
+from pathlib import Path
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / "agent" / "src"))
+from gti_fiscal_agent.firebird_reader import _connect
+for l in (ROOT / ".env").read_text(encoding="utf-8").splitlines():
+    if "=" in l and not l.startswith("#"):
+        k, _, v = l.partition("="); os.environ.setdefault(k.strip(), v.strip())
+t = sys.argv[1]; rx = re.compile(sys.argv[2], re.I) if len(sys.argv) > 2 else None
+conn = _connect(os.environ); cur = conn.cursor()
+cur.execute("select trim(rf.RDB$FIELD_NAME), f.RDB$FIELD_TYPE, coalesce(f.RDB$CHARACTER_LENGTH,f.RDB$FIELD_LENGTH) from RDB$RELATION_FIELDS rf join RDB$FIELDS f on f.RDB$FIELD_NAME=rf.RDB$FIELD_SOURCE where rf.RDB$RELATION_NAME=? order by rf.RDB$FIELD_POSITION", (t,))
+for name, ty, ln in cur.fetchall():
+    if rx and not rx.search(name): continue
+    if ty in (261,):  # blob
+        print(f"{name} BLOB"); continue
+    cur.execute(f'select "{name}", count(*) from "{t}" group by "{name}" order by 2 desc rows 1 to 400')
+    rows = cur.fetchall()
+    nn = sum(c for v, c in rows if v is not None)
+    top = [(str(v).strip()[:24] if v is not None else None, c) for v, c in rows[:5]]
+    print(f"{name} t{ty}/{ln} nn={nn} distinct{'>=' if len(rows)>=400 else '='}{len(rows)} {top}")
+conn.close()