Figured out where/how sqlite3BtreeRowCountEst() is called

FossilOrigin-Name: a46537153c0db06a324320fb5fb1a6aa5191a7559b6d1cabfa6bf4b9457b3bae

diff --git a/manifest b/manifest
index 2e567bbe55bb01fab68b05d058a79a5742378189..4d5618755f70d06d602f5f2e815e652e6fa18404 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,11 +1,8 @@
 B 3d35fa0be866213274fc09250225b345f6b08a9b4ec373d53d95e627e24512be
-C Order\sbtree.h\sby\slogical\sfunction,\sadd\scomments
-D 2020-09-17T15:04:16.854
-F src/btree.h 595e94f8ce788b8cd633d70c1d0892de0216083e789d38020d6a5432f06f38e7
-P 3d35fa0be866213274fc09250225b345f6b08a9b4ec373d53d95e627e24512be
-R d928bc2530a56c66a8796118e1f78d44
-T *branch * btree-code-documentation
-T *sym-btree-code-documentation *
-T -sym-trunk *
+C Figured\sout\swhere/how\ssqlite3BtreeRowCountEst()\sis\scalled
+D 2020-09-23T17:31:30.742
+F src/btree.h a52b132ac5812afd3c894ec64a3313162734d4ed765a5c12bab671ddf016969b
+P ab53b317953c07c12970e530efda0ce39fa259dc29be980c1aa4784dcf9a39fb
+R 9819f6c7f8b826627bd979a42816ba96
 U shearer
-Z 0f4717f5a6349aba4c2f8ff699459ba7
+Z d1230908241e48c6115d197b68156142

diff --git a/manifest.uuid b/manifest.uuid
index 098e363fbd4e4c432e358f65fd7719bc24c78355..d4e560e827ef33cf37b176303f3007e2f6f561bb 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-ab53b317953c07c12970e530efda0ce39fa259dc29be980c1aa4784dcf9a39fb
\ No newline at end of file
+a46537153c0db06a324320fb5fb1a6aa5191a7559b6d1cabfa6bf4b9457b3bae
\ No newline at end of file

diff --git a/src/btree.h b/src/btree.h
index 78e8554d7079806c99bcf5661855e78ff29a8ad3..daf8559c72d8c04064f0693e43006bf57d2adeea 100644 (file)
--- a/src/btree.h
+++ b/src/btree.h
@@ -192,8 +192,9 @@ int sqlite3BtreeSavepoint(Btree *, int, int);
 int sqlite3BtreeIsReadonly(Btree *pBt);
 int sqlite3HeaderSizeBtree(void);
 
-/* Estimate number of rows in table */
-/* This is no longer exposed via EXPLAIN QUERY PLAN */
+/* Estimate number of rows in table
+ * called only by OP IsSmaller, from PRAGMA optimize
+*/
 i64 sqlite3BtreeRowCountEst(BtCursor*);  
 
 /*