Added the SQL scripts to combine the sf1_blocks and tiger_blocks tables.

diff --git a/sql/combine-block-tables.sql b/sql/combine-block-tables.sql
new file mode 100644 (file)
index 0000000..3f49206
--- /dev/null
+++ b/sql/combine-block-tables.sql
@@ -0,0 +1,21 @@
+/*
+  Combine the sf1_blocks and tiger_blocks tables into one
+  comprehensive "blocks" table. Once we're done, we drop
+  sf1_blocks and tiger_blocks.
+*/
+INSERT INTO blocks
+       (SELECT sf1_blocks.id,
+              sf1_blocks.state,
+                      sf1_blocks.county,
+              sf1_blocks.tract,
+              sf1_blocks.block,
+              sf1_blocks.blkidfp00,
+              sf1_blocks.pop100,
+              sf1_blocks.total_area,
+              sf1_blocks.population_density,
+              tiger_blocks.the_geom
+       FROM sf1_blocks INNER JOIN tiger_blocks
+                       ON sf1_blocks.blkidfp00 = tiger_blocks.blkidfp00);
+
+DROP TABLE sf1_blocks;
+DROP TABLE tiger_blocks;

diff --git a/sql/create-blocks-table.sql b/sql/create-blocks-table.sql
new file mode 100644 (file)
index 0000000..97d8f2f
--- /dev/null
+++ b/sql/create-blocks-table.sql
@@ -0,0 +1,17 @@
+/*
+  Create a new "blocks" table to comprise the
+  sf1_blocks and tiger_blocks tables.
+*/
+
+CREATE TABLE blocks (
+       id                 SERIAL           PRIMARY KEY,
+       state             varchar(2)       NOT NULL,
+       county             varchar(3)       NOT NULL,
+       tract             varchar(6)       NOT NULL,
+       block             varchar(4)       NOT NULL,
+       blkidfp00         varchar(15)      NOT NULL,
+       pop100            integer          NOT NULL,
+       total_area        double precision NOT NULL,
+       population_density double precision NOT NULL,
+       the_geom                  geometry         NOT NULL
+);