ALTER TABLE CpGCode ADD CONSTRAINT pk_CpGCode PRIMARY KEY (code);
-ALTER TABLE GenomeBuildInfo ALTER COLUMN insert_time SET DEFAULT NOW();
-ALTER TABLE GenomeBuildInfo ALTER COLUMN is_major SET DEFAULT (1);
-ALTER TABLE GenomeBuildInfo ALTER COLUMN ncbi_genome_tax_id SET DEFAULT (0);
+ALTER TABLE GenomeBuildInfo ADD CONSTRAINT PK_GneomeBuildInfo PRIMARY KEY (snp_build_id,tax_id,is_major);
ALTER TABLE GtyAllele ADD CONSTRAINT pk_GtyAllele PRIMARY KEY (gty_id,rev_flag,chr_num);
ALTER TABLE IUPACna ADD CONSTRAINT pk_IUPACna PRIMARY KEY (allele);