SQL stats and commands (mostly from sept 2019)

4 files changed, 96 insertions, 0 deletions

diff --git a/sql/dump_regrobid_pdf.sql b/sql/dump_regrobid_pdf.sql
new file mode 100644
index 0000000..b846834
--- /dev/null
+++ b/sql/dump_regrobid_pdf.sql
@@ -0,0 +1,15 @@
+
+-- Run like:
+--   psql sandcrawler < dump_regrobid_pdf.sql | sort -S 4G | uniq -w 40 | cut -f2 > dump_regrobid_pdf.2019-11-12.json
+
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE READ ONLY DEFERRABLE;
+
+COPY (
+    SELECT cdx.sha1hex, row_to_json(cdx) FROM cdx
+    WHERE cdx.mimetype = 'application/pdf'
+    AND EXISTS (SELECT grobid.sha1hex FROM grobid WHERE cdx.sha1hex = grobid.sha1hex AND grobid.grobid_version IS NULL)
+)
+TO STDOUT
+WITH NULL '';
+
+ROLLBACK;
diff --git a/sql/dump_ungrobid_pdf.sql b/sql/dump_ungrobid_pdf.sql
new file mode 100644
index 0000000..3e6d782
--- /dev/null
+++ b/sql/dump_ungrobid_pdf.sql
@@ -0,0 +1,15 @@
+
+-- Run like:
+--   psql sandcrawler < dump_ungrobid_pdf.sql | sort -S 4G | uniq -w 40 | cut -f2 > dump_ungrobid_pdf.2019-09-23.json
+
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE READ ONLY DEFERRABLE;
+
+COPY (
+    SELECT cdx.sha1hex, row_to_json(cdx) FROM cdx
+    WHERE cdx.mimetype = 'application/pdf'
+    AND NOT EXISTS (SELECT grobid.sha1hex FROM grobid WHERE cdx.sha1hex = grobid.sha1hex)
+)
+TO STDOUT
+WITH NULL '';
+
+ROLLBACK;
diff --git a/sql/random_queries.md b/sql/random_queries.md
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index 0000000..6ae651a
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+++ b/sql/random_queries.md
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+
+Basic stats (2019-09-23):
+
+    SELECT COUNT(*) FROM cdx WHERE NOT EXISTS (SELECT grobid.sha1hex FROM grobid WHERE cdx.sha1hex = grobid.sha1hex);
+    => 28,023,760
+    => Time: 253897.213 ms (04:13.897)
+
+    SELECT COUNT(DISTINCT sha1hex) FROM cdx WHERE NOT EXISTS (SELECT grobid.sha1hex FROM grobid WHERE cdx.sha1hex = grobid.sha1hex);
+    => 22,816,087
+    => Time: 287097.944 ms (04:47.098)
+
+    SELECT COUNT(*) FROM grobid.
+    => 56,196,992
+
+    SELECT COUNT(DISTINCT sha1hex) FROM cdx;
+    => 64,348,277
+    => Time: 572383.931 ms (09:32.384)
+
+    SELECT COUNT(*) FROM cdx;
+    => 74,796,777
+
+    SELECT mimetype, COUNT(*) FROM cdx GROUP BY mimetype ORDER BY COUNT(*) DESC;
+    => Time: 189067.335 ms (03:09.067)
+
+                mimetype        |  count   
+        ------------------------+----------
+         application/pdf        | 51049905
+         text/html              | 24841846
+         text/xml               |   524682
+         application/postscript |    81009
+        (4 rows)
+
+Time: 189067.335 ms (03:09.067)
+
+    SELECT status_code, COUNT(*) FROM grobid GROUP BY status_code ORDER BY count(*) DESC;
+
+         status_code |  count   
+        -------------+----------
+                 200 | 56196992
+
+    compare with older sandcrawler/output-prod/2019-05-28-1920.35-statuscodecount:
+
+        200     49567139
+        400     3464503
+        409     691917
+        500     247028
+        503     123
+
+    SELECT row_to_json(cdx) FROM cdx LIMIT 5;
+
+    SELECT row_to_json(r) FROM (
+        SELECT url, datetime FROM cdx
+    ) r
+    LIMIT 5;
+
diff --git a/sql/table_sizes.md b/sql/table_sizes.md
new file mode 100644
index 0000000..3596b2b
--- /dev/null
+++ b/sql/table_sizes.md
@@ -0,0 +1,11 @@
+
+## September 2019 
+
+                              table_name                          | table_size | indexes_size | total_size
+    --------------------------------------------------------------+------------+--------------+------------
+     "public"."cdx"                                               | 31 GB      | 27 GB        | 58 GB
+     "public"."file_meta"                                         | 13 GB      | 6500 MB      | 19 GB
+     "public"."shadow"                                            | 8303 MB    | 9216 MB      | 17 GB
+     "public"."grobid"                                            | 4994 MB    | 6678 MB      | 11 GB
+     "public"."fatcat_file"                                       | 5206 MB    | 2094 MB      | 7300 MB
+     "public"."petabox"                                           | 403 MB     | 594 MB       | 997 MB