7a0635be123f35cc0b5063af03911a70ecbc9841
angie
  Fri Jun 1 17:30:41 2012 -0700
Track #7964 (1000 Genomes Phase 1 Variant Calls): adding trackDb entryand code support for database table that has per-chromosome fileNames
because 1000 Genomes provides enormous per-chromosome files.
This is very similar to code support for per-chromosome BAM.
To-do: refactor out bam-specific code and trackDbCustom.c's
tdbBigFileName to use bbiNameFromSettingOrTable(Chrom).

diff --git src/hg/hgTracks/vcfTrack.c src/hg/hgTracks/vcfTrack.c
index 4cdbd27..c15662b 100644
--- src/hg/hgTracks/vcfTrack.c
+++ src/hg/hgTracks/vcfTrack.c
@@ -1089,31 +1089,31 @@
 
 static void vcfTabixLoadItems(struct track *tg)
 /* Load items in window from VCF file using its tabix index file. */
 {
 char *fileOrUrl = NULL;
 /* Figure out url or file name. */
 if (tg->parallelLoading)
     {
     /* do not use mysql uring parallel-fetch load */
     fileOrUrl = trackDbSetting(tg->tdb, "bigDataUrl");
     }
 else
     {
     // TODO: may need to handle per-chrom files like bam, maybe fold bamFileNameFromTable into this:
     struct sqlConnection *conn = hAllocConnTrack(database, tg->tdb);
-    fileOrUrl = bbiNameFromSettingOrTable(tg->tdb, conn, tg->table);
+    fileOrUrl = bbiNameFromSettingOrTableChrom(tg->tdb, conn, tg->table, chromName);
     hFreeConn(&conn);
     }
 int vcfMaxErr = -1;
 struct vcfFile *vcff = NULL;
 boolean hapClustEnabled = cartUsualBooleanClosestToHome(cart, tg->tdb, FALSE,
 							VCF_HAP_ENABLED_VAR, TRUE);
 /* protect against temporary network error */
 struct errCatch *errCatch = errCatchNew();
 if (errCatchStart(errCatch))
     {
     vcff = vcfTabixFileMayOpen(fileOrUrl, chromName, winStart, winEnd, vcfMaxErr, -1);
     if (vcff != NULL)
 	{
 	filterRecords(vcff, tg->tdb);
 	if (hapClustEnabled && vcff->genotypeCount > 1 && vcff->genotypeCount < 3000 &&