drop index idx_astoh_1;
drop index idx_astoh_2;
drop index idx_astoh_3;
drop index idx_astoh_4;
drop index idx_astoh_5;
drop index idx_astoh_6;
drop index idx_astoh_7;
drop index idx_astoh_8;


CREATE UNIQUE INDEX idx_astoh_1 ON astoh USING btree (ash_codemp, ash_idptov, ash_centro, ash_comprob, ash_numero);
CREATE INDEX idx_astoh_2 ON astoh USING btree (ash_codemp, ash_centro, ash_anio, ash_mes, ash_fecomp);
CREATE INDEX idx_astoh_3 ON astoh USING btree (ash_codemp, ash_centro, ash_anio, ash_mes, ash_fecval);
CREATE INDEX idx_astoh_4 ON astoh USING btree (ash_anio, ash_mes, ash_codemp, ash_centro, ash_fecomp);
CREATE INDEX idx_astoh_5 ON astoh USING btree (ash_anio, ash_mes, ash_codemp, ash_centro, ash_fecval);
CREATE INDEX idx_astoh_6 ON astoh USING btree (ash_codemp, ash_idptov, ash_centro, ash_anio, ash_mes, ash_fecval);
CREATE INDEX idx_astoh_7 ON astoh USING btree (ash_anio, ash_mes, ash_codemp, ash_idptov, ash_centro, ash_fecval);
CREATE INDEX idx_astoh_8 ON astoh USING btree (ash_codemp, ash_idptov, ash_centro, ash_titulo);
