pgsql: Add ALTER TABLE ...

Log Message:
-----------
Add ALTER TABLE ... ALTER COLUMN ... SET STATISTICS DISTINCT

Robert Haas

Modified Files:
--------------
    pgsql/doc/src/sgml:
        catalogs.sgml (r2.203 -> r2.204)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/catalogs.sgml?r1=2.203&r2=2.204)
    pgsql/doc/src/sgml/ref:
        alter_table.sgml (r1.107 -> r1.108)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_table.sgml?r1=1.107&r2=1.108)
        analyze.sgml (r1.25 -> r1.26)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/analyze.sgml?r1=1.25&r2=1.26)
    pgsql/src/backend/access/common:
        tupdesc.c (r1.127 -> r1.128)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/common/tupdesc.c?r1=1.127&r2=1.128)
    pgsql/src/backend/bootstrap:
        bootstrap.c (r1.251 -> r1.252)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/bootstrap/bootstrap.c?r1=1.251&r2=1.252)
    pgsql/src/backend/catalog:
        heap.c (r1.356 -> r1.357)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/heap.c?r1=1.356&r2=1.357)
        index.c (r1.320 -> r1.321)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/index.c?r1=1.320&r2=1.321)
    pgsql/src/backend/commands:
        analyze.c (r1.139 -> r1.140)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/analyze.c?r1=1.139&r2=1.140)
        tablecmds.c (r1.294 -> r1.295)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/tablecmds.c?r1=1.294&r2=1.295)
    pgsql/src/backend/parser:
        gram.y (r2.675 -> r2.676)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/gram.y?r1=2.675&r2=2.676)
    pgsql/src/bin/pg_dump:
        pg_dump.c (r1.543 -> r1.544)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.c?r1=1.543&r2=1.544)
        pg_dump.h (r1.155 -> r1.156)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.h?r1=1.155&r2=1.156)
    pgsql/src/bin/psql:
        tab-complete.c (r1.184 -> r1.185)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/tab-complete.c?r1=1.184&r2=1.185)
    pgsql/src/include/catalog:
        catversion.h (r1.534 -> r1.535)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h?r1=1.534&r2=1.535)
        pg_attribute.h (r1.149 -> r1.150)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_attribute.h?r1=1.149&r2=1.150)
        pg_class.h (r1.114 -> r1.115)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_class.h?r1=1.114&r2=1.115)
    pgsql/src/include/nodes:
        parsenodes.h (r1.400 -> r1.401)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/parsenodes.h?r1=1.400&r2=1.401)